USMLE Step 3
Practice Test 6 for USMLE Step 3: real questions and explanations from the Varsity Tutors practice-test pool.
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At an 18-month well-child visit, the parents of a toddler express concern about his development. He uses 3-4 single words but does not point to objects to share interest. He often flaps his hands when excited and avoids making eye contact. His parents note that he prefers to line up his toy cars rather than engaging in pretend play.
Which of the following is the most appropriate next step?
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At an 18-month well-child visit, the parents of a toddler express concern about his development. He uses 3-4 single words but does not point to objects to share interest. He often flaps his hands when excited and avoids making eye contact. His parents note that he prefers to line up his toy cars rather than engaging in pretend play.
Which of the following is the most appropriate next step?
Explanation: The child exhibits multiple red flags for autism spectrum disorder (ASD), including impaired social communication (lack of pointing, poor eye contact), restricted interests, and repetitive behaviors (hand flapping, lining up toys). The American Academy of Pediatrics recommends universal ASD screening at 18 and 24 months. Given the specific concerns, the most appropriate next step is to use a validated, autism-specific screening tool like the Modified Checklist for Autism in Toddlers, Revised with Follow-Up (M-CHAT-R/F). While hearing loss can cause speech delay, it does not explain the other signs. Reassurance or delaying evaluation is inappropriate given the number of concerning features.
A 67-year-old man with stable NYHA Class II HFrEF is seen for a routine annual visit in October. His medications are optimized. He has no new complaints. In addition to managing his heart failure medications, which of the following preventive health interventions is most important to administer or prescribe at this visit?
Explanation: When managing patients with heart failure, you must balance ongoing cardiac care with essential preventive measures. This question tests your understanding of vaccination priorities in vulnerable populations during flu season. The correct answer is D because annual influenza vaccination is critically important for patients with heart failure. Influenza can trigger acute decompensation in HFrEF patients, leading to hospitalizations and increased mortality. Since this visit occurs in October—peak flu vaccination season—this intervention takes priority. The CDC specifically recommends annual flu vaccines for all patients with cardiovascular disease as a high-priority preventive measure. Choice A is incorrect because screening colonoscopy, while important for this age group, is not time-sensitive like seasonal vaccinations and doesn't directly impact his heart failure prognosis in the immediate term. Choice B represents a valuable intervention since pneumococcal disease poses significant risks to heart failure patients, but it's not seasonal and can be administered at subsequent visits without losing efficacy. Choice C, while recommended for adults over 60, is similarly non-urgent. Zoster vaccination provides important protection but doesn't carry the same immediate seasonal timing requirements or direct cardiovascular risk implications as influenza vaccination. Remember that USMLE Step 3 often tests clinical prioritization in real-world scenarios. When you see heart failure patients during flu season, think "influenza vaccination first." The combination of increased infection risk, potential for cardiac decompensation, and seasonal timing makes this the highest-yield preventive intervention at this specific visit.
A 52-year-old man on maintenance hemodialysis has persistent hyperphosphatemia, with a pre-dialysis phosphorus level of 7.5 mg/dL. He has received extensive dietary counseling. He is currently taking calcium acetate 1334 mg (2 tablets) with each meal. His serum calcium is 9.2 mg/dL.
Explanation: When managing hyperphosphatemia in dialysis patients, you must balance effective phosphorus control with avoiding complications from excessive calcium intake. This patient's phosphorus remains dangerously elevated at 7.5 mg/dL (normal: 2.5-4.5 mg/dL) despite dietary counseling and calcium acetate therapy. The correct approach is D) Add a non-calcium-based phosphate binder such as sevelamer. Current guidelines recommend limiting elemental calcium intake from binders to 1.5 grams daily to prevent vascular calcification and cardiovascular complications. This patient is already receiving significant calcium from his current regimen, and his phosphorus control remains inadequate. Adding sevelamer provides additional phosphorus binding without further calcium loading. A) Increasing calcium acetate to 4 tablets would exceed safe calcium intake limits and increase cardiovascular risk without necessarily improving phosphorus control. B) Switching to calcium carbonate offers no advantage over calcium acetate for phosphorus binding and still presents the same calcium overload concerns. C) Urgent parathyroidectomy is premature—this procedure is reserved for severe, refractory hyperparathyroidism with complications, not isolated hyperphosphatemia that hasn't been optimally managed medically. Key strategy: In dialysis patients with persistent hyperphosphatemia on calcium-based binders, think "calcium limit reached" and move to non-calcium alternatives like sevelamer or lanthanum carbonate. The USMLE Step 3 often tests your knowledge of when to escalate therapy while avoiding iatrogenic complications from overtreatment with calcium-containing medications.
A 50-year-old man with a 30-pack-year smoking history who continues to smoke daily presents for a routine visit. He has no other chronic medical conditions. His immunization record shows he is up-to-date on Tdap and influenza vaccines, but has never received a pneumococcal vaccine.
Which of the following is the most appropriate recommendation for pneumococcal vaccination for this patient?
Explanation: The ACIP recommends pneumococcal vaccination for adults aged 19-64 with certain underlying medical conditions or risk factors, which include cigarette smoking. For a vaccine-naive individual in this category, the current recommendation is to administer either a single dose of PCV20 or a single dose of PCV15 followed by a dose of PPSV23 at least one year later. Administering PCV20 alone is a correct and complete strategy.
A 68-year-old woman with cirrhosis (Child-Pugh class B) needs an elective inguinal hernia repair. Her preoperative labs show a platelet count of 65,000/mcL and an INR of 1.7. The surgeon is concerned about her bleeding risk and consults you. Which of the following is the most accurate statement to guide perioperative management?
Explanation: In cirrhosis, the elevated INR reflects decreased hepatic synthesis of both procoagulant (Factors II, VII, IX, X) and anticoagulant (Protein C, S) factors. This results in a 'rebalanced' hemostasis that the INR does not accurately capture. Clinical bleeding risk in cirrhotic patients undergoing procedures correlates better with the platelet count and function than with the INR. Prophylactic FFP administration to 'correct' the INR is not recommended as it is often ineffective and can cause volume overload.
A 52-year-old woman with a history of adult-onset asthma presents for follow-up. Her symptoms, which include wheezing and chest tightness, are consistently worse during her work week as a hospital laboratory technician and improve significantly on weekends and during vacations. She is currently using a low-dose ICS/LABA inhaler with partial relief. Spirometry in the clinic shows a reversible obstructive pattern. Her blood eosinophil count is elevated.
In addition to optimizing her asthma medications, what is the most important long-term management recommendation for this patient?
Explanation: This patient's history is classic for occupational asthma, with symptoms clearly linked to her work environment. While optimizing medical therapy is important for symptom control, the definitive and most crucial long-term management strategy for occupational asthma is the complete cessation of exposure to the sensitizing agent. Continued exposure, even with medical treatment, is associated with a worse prognosis and irreversible decline in lung function. Referral to an occupational medicine specialist and discussion about workplace modification or change in employment is paramount. The other options represent medical management steps but do not address the underlying trigger.
A 58-year-old woman presents for a well-woman visit. Her surgical history is notable for a total hysterectomy with bilateral salpingo-oophorectomy 10 years ago for symptomatic uterine fibroids. All her prior Pap tests were normal, and she has no history of cervical dysplasia.
What is the most appropriate recommendation regarding cervical cancer screening?
Explanation: Guidelines from the USPSTF and ACOG recommend discontinuing cervical cancer screening in women who have had a total hysterectomy (removal of uterus and cervix) for benign reasons (e.g., fibroids) and who do not have a history of a high-grade precancerous lesion (CIN 2 or 3) or cervical cancer. This patient meets all criteria to safely stop screening.
A 32-year-old G2P2 is brought to the clinic by her husband 3 weeks postpartum. He states she has been crying frequently, has a poor appetite, and has been expressing feelings of being an inadequate mother. The patient reports, "I feel overwhelmed and can't seem to connect with the baby." She denies any thoughts of harming herself or the infant. She has profound difficulty sleeping, even when the baby is asleep. These symptoms have been present for the past 10 days.
Explanation: The patient's symptoms, including anhedonia, feelings of inadequacy, appetite and sleep disturbance, lasting beyond two weeks postpartum, are highly suggestive of postpartum depression rather than postpartum blues. The most appropriate next step is to use a validated screening tool, such as the Edinburgh Postnatal Depression Scale (EPDS), to formally assess the severity of her symptoms and confirm the diagnosis before initiating treatment. (A) Postpartum blues are characterized by milder symptoms that peak around day 5 and resolve by 2 weeks postpartum. Her symptoms are too severe and prolonged for this diagnosis. (C) While an SSRI may be indicated, prescribing medication should be preceded by a formal screening and diagnosis. (D) Immediate hospitalization is reserved for patients with postpartum psychosis or those with active suicidal or homicidal ideation, which this patient denies.
A 52-year-old woman is brought to the emergency department for evaluation of chest pain. A myocardial infarction is ruled out, and she is diagnosed with unstable angina. She undergoes cardiac catheterization, and a drug-eluting stent is placed in her left anterior descending artery. She is now ready for discharge. She has a new prescription for clopidogrel in addition to her daily aspirin. She lives alone and has a high school education.
Which of the following interventions is most critical for ensuring a safe transition home and preventing adverse events for this patient?
Explanation: Premature discontinuation of dual antiplatelet therapy (DAPT) is a major risk factor for life-threatening stent thrombosis. Given the complexity of the new regimen and its critical importance, the most effective intervention to ensure adherence and prevent error is to use the teach-back method. This involves asking the patient to explain the medication plan in her own words, which confirms comprehension rather than just assuming it from passive receipt of information. While the other options are important components of post-MI care, ensuring understanding of the DAPT regimen is the most immediate and critical safety step at the point of discharge.
During a 4-month well-child visit, the mother of an infant expresses hesitation about proceeding with the recommended vaccinations. She says, 'I saw a post online from a doctor who said that natural immunity from getting sick is stronger and safer than vaccine-induced immunity.' Which of the following is the most appropriate response to address this specific concern?
Explanation: This response uses effective risk communication. It validates the parent's source of information to some extent ('natural immunity can be strong') but then clearly and calmly pivots to the key message: the significant danger of acquiring that immunity through natural infection versus the relative safety of vaccination. This approach is respectful and educational. Stating that vaccine immunity is always superior (B) is an oversimplification and can sound dismissive. Immediately offering an alternative schedule (C) may be necessary later but fails to first address the core misconception. Citing school requirements (D) is coercive and does not address the parent's safety concerns.
A 22-year-old male is brought to the trauma bay after a fall from a height of 30 feet. He has a GCS of 6, is hypotensive, and has a distended abdomen. He is taken emergently to the operating room where he is found to have a grade V liver laceration and a mesenteric tear. He receives a massive transfusion of 20 units of PRBCs, 15 units of FFP, and 3 units of platelets. He returns to the ICU postoperatively, intubated, and on multiple vasopressors. His lactate is 11 mmol/L, pH is 7.15, and temperature is 34.5°C.
This patient's immediate postoperative mortality risk is best described by the presence of which of the following conditions?
Explanation: The patient's clinical picture perfectly illustrates the 'lethal triad' of trauma: metabolic acidosis (pH 7.15, lactate 11), hypothermia (34.5°C), and coagulopathy (implied by the massive transfusion and ongoing shock). This vicious cycle is a major driver of mortality in severely injured trauma patients. Each component worsens the others, leading to irreversible hemorrhagic shock and death. While ARDS (B), ACS (C), and AKI (D) are all very serious potential complications, the lethal triad represents the most immediate, core physiological derangement that predicts imminent death if not rapidly corrected.
A 55-year-old woman with well-controlled rheumatoid arthritis presents for a health maintenance visit. Her medications include methotrexate 15 mg weekly and folic acid. She is otherwise healthy. She asks about the shingles vaccine. She has a history of chickenpox as a child.
What is the most appropriate recommendation regarding zoster vaccination?
Explanation: The Advisory Committee on Immunization Practices (ACIP) recommends the recombinant zoster vaccine (Shingrix) for all immunocompetent adults aged 50 and older, including those on low-dose immunosuppressive therapy such as methotrexate (≤0.4 mg/kg/week). The recombinant vaccine is not a live virus and is safe and effective in this population. The live attenuated vaccine would be contraindicated.
An 81-year-old woman with mild dementia is transferred to the ward from the surgical ICU 3 days after a hip hemiarthroplasty. Her postoperative course was complicated by delirium. On the ward, she is calm during the day when her daughter is present. At night, she becomes agitated, yelling that she is in a prison and trying to climb out of bed. She has no fever, and her vital signs are stable.
Which of the following is the most appropriate initial management for her nocturnal agitation?
Explanation: This patient is experiencing delirium, which is common in elderly postoperative patients. The first-line management for delirium, particularly the hypoactive or mixed types with nocturnal agitation, is a multicomponent, nonpharmacologic approach. This includes frequent reorientation, maintaining a normal sleep-wake cycle, ensuring hearing aids and glasses are in use, and managing the environment to be calm and quiet. Pharmacologic interventions like quetiapine are reserved for severe agitation that poses a risk to the patient or staff. Restraints can worsen agitation and should be a last resort. There is no indication of seizure activity.
A 40-year-old woman with rheumatoid arthritis on methotrexate and adalimumab is followed by rheumatology and PCP. Background: Recurrent sinus infections; wants pregnancy in 1 year. Current status/Plan: Disease controlled; needs vaccine updates and contraception counseling; labs every 3 months. Team: PCP, rheumatologist, pharmacist, OB/GYN. Coordination: Rheumatology adjusts DMARDs; PCP manages preventive care and infection screening. Transition plan: Shared care plan in EHR. How should communication be handled between the multidisciplinary team to prevent complications during ongoing coordinated care?
Explanation: This question tests the ability to manage care coordination and transitions in primary care as per USMLE Step 3 standards. Effective care coordination involves seamless communication among healthcare providers and ensuring continuity of care, which is crucial for patient safety and reducing readmissions. In the given scenario, the patient's transition plan must include specific follow-up actions like shared documentation and messaging, with responsibilities clearly assigned to prevent gaps in care for this rheumatoid arthritis patient. The correct answer demonstrates the application of these principles by ensuring appropriate follow-up and clear communication among the care team through coordinated monitoring. A common distractor might suggest avoiding specialists or stopping labs, which often leads to fragmentation of care and complications. Teaching strategies include reinforcing the importance of clear documentation, regular team meetings, and involving the patient in the care plan to ensure adherence and satisfaction. Encourage students to practice scenario-based planning to visualize transitions effectively, focusing on preconception care in chronic disease.
A 33-year-old man with schizophrenia has been hospitalized for a severe psychotic exacerbation. His past records indicate he was treated for 12 weeks with risperidone up to 8 mg/day with no improvement in his auditory hallucinations or paranoid delusions. Following that, he was switched to aripiprazole 30 mg/day for 16 weeks, again with minimal response. He has no history of substance use or neurologic conditions. He has been adherent to these medication trials.
Which of the following is the most appropriate medication to initiate during this hospitalization?
Explanation: When you encounter a schizophrenia case describing failed trials with multiple antipsychotics, you're likely dealing with treatment-resistant schizophrenia (TRS). The key diagnostic criteria for TRS are: failure to respond to at least two adequate trials of different antipsychotics, each lasting 4-6 weeks at therapeutic doses, with continued psychotic symptoms. This patient clearly meets TRS criteria with failed 12-week risperidone and 16-week aripiprazole trials at appropriate doses, demonstrating persistent auditory hallucinations and paranoid delusions. Clozapine (D) is the gold standard for TRS and the only FDA-approved medication specifically for this indication. It's uniquely effective because it blocks multiple neurotransmitter receptors beyond just dopamine, including serotonin and norepinephrine pathways. Olanzapine (A) is another second-generation antipsychotic, but switching to yet another conventional antipsychotic after two failures rarely provides benefit. Haloperidol (B) is a first-generation antipsychotic that's actually less likely to work than the second-generation agents already tried, plus carries higher risk of extrapyramidal side effects. Ziprasidone (C) is another second-generation antipsychotic with no special indication for treatment-resistant cases. While clozapine requires careful monitoring for potentially serious side effects like agranulocytosis (weekly blood draws initially), neutropenia, and myocarditis, its superior efficacy in TRS makes it the clear choice when other antipsychotics have failed. Study tip: Remember the "rule of twos" for TRS—two failed trials of different antipsychotics automatically points to clozapine as the next step.
A 68-year-old man with a history of hypertension and type 2 diabetes mellitus is admitted to the ICU with septic shock secondary to a urinary tract infection. On day 3 of his admission, he remains hypotensive requiring norepinephrine at 0.4 mcg/kg/min and vasopressin at 0.03 units/min. He is mechanically ventilated with a PaO2/FiO2 ratio of 150. His creatinine has increased from 1.2 mg/dL on admission to 3.8 mg/dL, and he is anuric. His platelet count has decreased from 250,000/mm³ to 80,000/mm³. The patient's family asks about his chances of survival. A resident quotes a mortality statistic based on the number of pressors.
Which of the following is the most appropriate way to frame the prognostic discussion with the family?
Explanation: The most appropriate and effective communication strategy is to explain that the patient's prognosis is poor due to multisystem organ dysfunction (MSOF). This patient has evidence of cardiovascular (requiring two vasopressors), respiratory (ARDS), renal (AKI with anuria), and hematologic (thrombocytopenia) failure. Framing the discussion around MSOF helps the family understand the global severity of the illness rather than focusing on a single, potentially misleading parameter. Prognosis in critical illness is determined by the number and severity of failed organs, a concept captured by scoring systems like SOFA. Focusing on one improving or stable system (A) gives false hope. Stating it is 'too early' (B) is evasive and inaccurate, as sufficient data exists to establish a poor prognosis. Quoting a precise statistic (D) can be perceived as cold, may not be accurate for the individual, and is less effective than explaining the underlying concept of MSOF.
A 28-year-old graduate student from Germany presents to establish care. He is required to have a physical examination for his university program. He is asymptomatic and feels well. He has no known exposures to tuberculosis, no history of IV drug use, has not lived in a congregate setting, and has no plans to work in a healthcare setting.
What is the most appropriate approach to screening for latent tuberculosis infection in this patient?
Explanation: The USPSTF recommends screening for latent tuberculosis infection (LTBI) only in populations at increased risk. This includes individuals born in or who are former residents of countries with increased TB prevalence, or those with specific risk factors like immunosuppression or living in congregate settings (e.g., correctional facilities, homeless shelters). As Germany is a low-prevalence country and the patient has no other risk factors, screening for LTBI is not indicated.
A 59-year-old man is transferred to the ward after a 10-day ICU stay for septic shock requiring vasopressors and broad-spectrum antibiotics. He is now stable. A review of his ICU labs shows a new platelet count of 45,000/microL, which was 155,000/microL on admission. He has no evidence of active bleeding. He received a 5-day course of prophylactic unfractionated heparin in the ICU, which was stopped 4 days ago.
What is the most appropriate next step in the management of his thrombocytopenia?
Explanation: The patient has new-onset thrombocytopenia with a >50% drop from baseline that occurred 5-10 days after exposure to heparin. This presentation is concerning for heparin-induced thrombocytopenia (HIT), a prothrombotic condition. Even though heparin was stopped 4 days ago, HIT can present with a delayed onset. The most appropriate next step is to send diagnostic tests for HIT, including the anti-PF4 antibody ELISA, and review a peripheral smear. Platelet transfusion is contraindicated in HIT unless there is life-threatening bleeding. Re-initiating heparin would be dangerous. While sepsis can cause thrombocytopenia, the timing and severity of the drop warrant a workup for HIT.
During an 11-year-old girl's well-child visit, you recommend the human papillomavirus (HPV) vaccine series. Her mother states, "I'm not sure about that one. I've heard it can make kids think it's okay to be sexually active." The girl is not yet sexually active.
Which of the following is the most effective response to this parent's concern?
Explanation: The most effective communication strategy is to reframe the purpose of the HPV vaccine as a cancer-preventing vaccine rather than a vaccine against a sexually transmitted infection. Highlighting that it prevents cervical, oropharyngeal, anal, and other cancers is a powerful motivator for parents. Emphasizing that the vaccine provides the best protection when given before exposure to the virus (i.e., before sexual debut) provides a strong rationale for vaccinating at this age. (B) While factually correct, directly confronting the mother's belief with study data can sometimes be perceived as dismissive. The reframing strategy (A) is generally more effective. (C) Using mandates as the primary reason can undermine the physician's role as a trusted advisor and may not be true in all states. (D) Deferring the vaccine is medically inappropriate as it leaves the child unprotected and misses the optimal window for immunization. The goal is to administer the vaccine before exposure.
A 62-year-old man has CKD stage 4 for 7 years from diabetes; he follows dietary counseling and takes insulin, losartan 100 mg daily, amlodipine 10 mg daily, and furosemide 40 mg daily. He reports worsening restless legs and fatigue for 1 year. BP is 138/80 mm Hg. Exam shows pallor. Labs: creatinine 3.3 mg/dL, eGFR 19 mL/min/1.73 m², Hgb 9.6 g/dL, ferritin 380 ng/mL, transferrin saturation 14%, Ca 8.7 mg/dL, phosphate 4.8 mg/dL. Renal ultrasound shows chronic changes only. What is the next best step in managing this patient's CKD?
Explanation: This question tests chronic kidney disease management skills, specifically focusing on evidence-based treatment for anemia with functional iron deficiency in CKD patients. Chronic kidney disease management involves regular monitoring of renal function, adjusting medications based on kidney status, and managing complications like anemia and electrolyte imbalances. In the presented vignette, the patient's low transferrin saturation despite high ferritin indicates functional iron deficiency, requiring IV iron. The correct choice, administering intravenous iron for functional iron deficiency, accurately reflects current guidelines for managing anemia in CKD stage 4, demonstrating the student's understanding of appropriate clinical interventions. A common distractor may suggest transfusing RBCs first, which is not preferred due to risks, highlighting a frequent misconception. To improve understanding, students should focus on guidelines for CKD anemia, regularly review iron studies, and practice distinguishing absolute from functional deficiencies.
History & Lifestyle: 70-year-old man with hypertension for routine follow-up. • Meds: metoprolol and lisinopril; adherent. • BMI 27; eats balanced diet. • Quit smoking 30 years ago; 10 pack-years total. Family History: Noncontributory. Preventive Care Review: Received PCV13 years ago; no PPSV23 or PCV20 documented. No immunocompromising conditions or cochlear implant.
What is the next best step in preventive care for this patient?
Explanation: This question tests understanding of preventive care and screening in primary care (USMLE Step 3). Preventive care involves applying evidence-based guidelines to recommend appropriate screenings and lifestyle modifications. In this vignette, the 70-year-old man received PCV13 but no further pneumococcal vaccines, the next best step is giving PCV20 now per adult guidance, aligning with CDC/ACIP guidelines. Choice A is correct because it matches CDC recommendations for PCV20 in adults 65+ who previously received PCV13. Choice D is incorrect because it suggests no further vaccination after PCV13, but additional dosing is recommended. For teaching, emphasize the importance of staying updated with guidelines, identifying patient-specific risk factors, and prioritizing screenings that provide the greatest benefit. Encourage students to practice applying guidelines in varied scenarios to build confidence in clinical decision-making.
A 29-year-old woman who is 10 weeks pregnant presents for follow-up of her ulcerative colitis. Her disease has been in deep remission for over a year on maintenance therapy with oral sulfasalazine. She expresses concern about the medication's effect on her pregnancy and asks if she should discontinue it.
Which of the following is the most appropriate advice regarding her medication?
Explanation: When managing inflammatory bowel disease during pregnancy, you must balance maternal disease control with fetal safety. Active IBD poses greater risks to both mother and fetus than most maintenance medications, making continued treatment crucial. Sulfasalazine is considered safe during pregnancy and is classified as FDA Pregnancy Category B. The drug has been used extensively in pregnant women with IBD and rheumatoid arthritis without increased teratogenic risk. However, sulfasalazine does have one important mechanism of action that requires attention: it inhibits folate absorption and metabolism. Since adequate folate is essential for preventing neural tube defects, especially during the first trimester, folic acid supplementation (typically 5mg daily) should be added when continuing sulfasalazine during pregnancy. Option A is incorrect because reducing the dose risks losing disease control without providing additional safety benefits. Option B is dangerous because discontinuing effective maintenance therapy significantly increases the risk of disease flare, which poses substantial risks including preterm labor, low birth weight, and maternal complications. Option C represents unnecessary switching since sulfasalazine is already safe in pregnancy, and topical mesalamine may be less effective for maintaining systemic disease control. Remember for USMLE Step 3: IBD management during pregnancy prioritizes maintaining remission over medication concerns. Most IBD maintenance medications (sulfasalazine, mesalamine, certain immunosuppressants) are safer than active disease. Always consider adding folic acid when sulfasalazine is used in pregnancy due to folate interference.
A 16-year-old boy with type 1 diabetes mellitus for 8 years comes for a routine follow-up. He is on a basal-bolus regimen with insulin glargine and insulin lispro. His HbA1c is 8.8%, up from 8.2% six months ago. He reports checking his blood glucose 2-3 times per day. He admits to frequent postprandial hyperglycemia but is unsure of the cause and finds it difficult to adjust his insulin doses correctly. He is otherwise healthy and active on his high school soccer team.
Which of the following is the most appropriate next step to improve his glycemic management?
Explanation: This adolescent with long-standing type 1 diabetes has suboptimal glycemic control (HbA1c > 7.5%) and demonstrates difficulty with the complexities of a multiple daily injection regimen, particularly with postprandial glucose excursions. Referral for evaluation for an insulin pump and continuous glucose monitoring (CGM) is the most appropriate next step. This technology provides more physiologic insulin delivery, allows for real-time glucose data to guide therapy, and can improve glycemic control and quality of life, especially in adolescents struggling with regimen adherence and complexity.
A 60-year-old man with new diagnosis of HCV is managed by PCP and hepatology. Background: On multiple meds; occasional missed appointments; no cirrhosis on imaging. Current status/Plan: Starting direct-acting antiviral therapy; needs adherence support and lab monitoring. Team: PCP, hepatologist, pharmacist, clinic RN, social worker. Coordination: Hepatology prescribes antivirals; PCP manages comorbidities and vaccines. Transition plan: Shared lab schedule established. Which team member is primarily responsible for medication reconciliation and interaction screening before starting HCV therapy?
Explanation: This question tests the ability to manage care coordination and transitions in primary care as per USMLE Step 3 standards. Effective care coordination involves seamless communication among healthcare providers and ensuring continuity of care, which is crucial for patient safety and reducing readmissions. In the given scenario, the patient's transition plan must include specific follow-up actions like reconciliation and screening, with responsibilities clearly assigned to the pharmacist to prevent gaps in care for this HCV patient. The correct answer demonstrates the application of these principles by ensuring appropriate follow-up and clear communication among the care team through pharmacy expertise. A common distractor might suggest assigning to non-pharmacy roles, which often leads to fragmentation of care and interactions. Teaching strategies include reinforcing the importance of clear documentation, regular team meetings, and involving the patient in the care plan to ensure adherence and satisfaction. Encourage students to practice scenario-based planning to visualize transitions effectively, such as pre-therapy medication reviews.
A 45-year-old woman presents to your office for follow-up 10 days after an open appendectomy. She reports that over the last two days, her incisional pain has worsened, and the area has become red and swollen. On examination, her temperature is 37.9°C (100.2°F). The inferior aspect of her incision is erythematous, indurated, and fluctuant over a 3-cm area. There is no significant surrounding cellulitis.
Explanation: The patient has a superficial surgical site infection with abscess formation, indicated by the area of fluctuance. The cornerstone of management for an abscess is incision and drainage. Antibiotics alone are insufficient. In an outpatient setting, this can be done by removing a few sutures/staples, gently probing to drain the purulent collection, obtaining a culture, and lightly packing the wound to allow it to drain and heal by secondary intention. Imaging is not necessary for a clinically obvious superficial abscess. Hospital admission and IV antibiotics are reserved for patients with systemic signs of infection (high fever, tachycardia, hypotension) or deep/complex infections.