- A STAT order for 'Ammonia level, draw on ice' is received for a patient in the ICU. The requisition is time-stamped 0930, and it is now 0945. The patient is currently receiving lactulose and rifaximin. What verification step is most critical before collection?
Answer: Proceed immediately given the STAT priority and 15-minute delay, ensuring proper iced collection and rapid transport to laboratory
When you encounter STAT orders in phlebotomy, time is the critical factor that overrides most other considerations. STAT orders indicate urgent medical necessity, meaning delays can compromise patient care and treatment decisions.
Answer A is correct because it recognizes the appropriate prioritization for emergency situations. The 15-minute delay since the order was placed at 0930 already represents lost time for urgent laboratory results. While ammonia levels do require special handling (collection on ice, immediate transport), these are standard protocols you should implement automatically, not additional verification steps that would cause further delay.
Answer B is incorrect because lactulose (used to reduce ammonia levels) doesn't contraindicate ammonia testing—in fact, monitoring ammonia levels during lactulose therapy is medically appropriate to assess treatment effectiveness. Recent medication administration doesn't warrant delaying urgent orders.
Answer C is wrong because while ammonia specimens do require specific handling, this isn't a "verification" step—it's part of your standard collection protocol. The question asks what verification step is most critical, not what collection technique to use.
Answer D is incorrect because dietary protein intake, while it can affect ammonia levels, doesn't warrant delaying a STAT order. The physician ordering the test is aware of factors that influence results and has determined the urgency supersedes these considerations.
Study tip: For STAT orders on your exam, remember that time sensitivity almost always trumps other factors. Focus on rapid, proper collection rather than additional verification steps that cause delays.
- A requisition shows: Patient DOB: 03/15/1985, MRN: 12345, Tests: TSH, Free T4, Anti-TPO antibodies - All marked as 'STAT - OR HOLD'. The surgery schedule indicates this patient's thyroidectomy was postponed from today until next week. Based on this information, what verification step is most critical?
Answer: Contact the ordering provider to clarify whether the tests should still be drawn since thyroid function monitoring may no longer be urgent
When surgery is postponed, the clinical urgency that justified STAT thyroid function tests (likely for pre-operative clearance) may no longer exist. The ordering provider should clarify whether the tests are still needed immediately or can be rescheduled. Choice A focuses on efficiency rather than clinical appropriateness. Choice B misinterprets 'OR HOLD' which typically means to hold surgery pending results, not hold specimens. Choice D assumes continued urgency without considering the changed clinical context that prompted the original STAT order.
- A phlebotomist receives a requisition for a patient that includes: CBC (routine), PT/INR (routine), and glucose (STAT). The patient's chart shows they are scheduled for surgery at 2:00 PM, and it is currently 11:30 AM. The patient has been NPO since midnight and reports taking warfarin this morning. What is the most appropriate action regarding order verification?
Answer: Verify with the nurse whether the STAT glucose is intended for pre-operative monitoring given the patient's fasting status
The STAT glucose order requires verification because it conflicts with typical pre-operative protocols. A fasting patient scheduled for surgery would not normally need STAT glucose unless there's a specific clinical concern (hypoglycemia, diabetes management). The phlebotomist should verify this unusual timing with the nurse before proceeding. Choice A ignores the priority conflict, Choice B misunderstands that STAT orders take precedence over fasting considerations, and Choice C incorrectly assumes PT/INR should be delayed when it's likely needed for pre-operative coagulation assessment.
- A requisition indicates: 'Cardiac enzymes q8h x 3 draws' with start time listed as '1400 today'. The first draw was completed yesterday at 2200, and the second draw was done today at 0600. It is now 1400. What verification action is most appropriate?
Answer: Verify with the provider whether a third draw is still clinically indicated since the q8h x 3 protocol may have already been completed
The q8h x 3 protocol appears to have started yesterday (2200, 0600, and now 1400 would be three draws). The provider should verify if continued monitoring is needed since the original three-draw series may be complete, despite the requisition showing a 1400 start time. Choice A ignores the potential completion of the original series. Choice C focuses on labeling rather than clinical necessity. Choice D inappropriately involves laboratory staff in clinical decisions that belong to the ordering provider.
- A phlebotomist receives an order for 'Blood cultures x2, 30 minutes apart' with a collection time of '0600 and 0630'. Upon arrival at 0600, the patient has a temperature of 101.8°F, but the nurse reports the patient received antibiotics at 0545. What aspect of order verification is most important in this situation?
Answer: Verify with the provider whether to proceed with collection despite recent antibiotic administration and document the timing for interpretation
Recent antibiotic administration (15 minutes before collection) significantly impacts blood culture interpretation. The provider should be notified to make a clinical decision about proceeding, and the antibiotic timing must be documented for laboratory interpretation. Choice A suggests inappropriate delay - cultures should generally be drawn before antibiotics when possible, but if already given, delaying further isn't beneficial. Choice B focuses on interval timing rather than the more critical antibiotic issue. Choice C ignores the significant impact of recent antibiotic administration on culture sensitivity.
- A requisition for a 2-year-old pediatric patient shows: CBC with differential (STAT), Blood culture x1 (STAT), and Basic metabolic panel (Routine). The estimated total blood volume needed is 8 mL. The patient weighs 12 kg. What verification consideration is most critical before proceeding?
Answer: Calculate whether the 8 mL collection exceeds safe pediatric limits and verify if all tests can be performed with reduced volumes
For a 12 kg child, maximum safe blood draw is typically 1% of blood volume (approximately 6-7 mL), making 8 mL potentially excessive. The phlebotomist should verify if laboratories can perform tests with reduced volumes or if priorities should be established. Choice A addresses volume but doesn't consider the total collection safety. Choice B focuses on convenience rather than safety limits. Choice D questions clinical judgment inappropriately - STAT CBC and blood culture together are common in febrile or ill pediatric patients.
- An order reads: 'Lipid panel, 12-hour fasting required, draw 0700'. The patient chart shows: Last meal 1800 yesterday, clear liquids until 2200 yesterday, then NPO. Patient reports drinking black coffee at 0630 this morning. How should the order verification be handled?
Answer: Collect the specimen but document the coffee intake and verify with the provider whether results will be acceptable for clinical decision-making
Black coffee may affect lipid results, particularly triglycerides. The specimen can be collected with proper documentation of the coffee intake, allowing the provider to decide whether the results are clinically useful or if repeat testing is needed. Choice A incorrectly assumes coffee doesn't affect fasting status for lipids. Choice B may unnecessarily delay testing since providers sometimes accept results with minor fasting violations. Choice D inappropriately involves dietary services in a laboratory testing decision that should involve the ordering provider.
- An order shows: 'Warfarin monitoring: PT/INR daily x 5 days, then twice weekly'. Today is day 3, and previous results were: Day 1 INR = 1.2, Day 2 INR = 2.8. The patient reports missing yesterday's warfarin dose. What verification consideration is most important?
Answer: Proceed with collection as scheduled since daily monitoring is protocol regardless of missed doses, and results guide dosing adjustments
Daily PT/INR monitoring continues as ordered because missed doses and resulting INR changes are exactly why monitoring is performed - to guide dosing adjustments. The significant rise from 1.2 to 2.8 followed by a missed dose makes monitoring even more critical. Choice B unnecessarily questions established monitoring protocols. Choice C dangerously delays monitoring when anticoagulation levels may be unstable. Choice D prematurely considers extended monitoring when current results will inform that decision.
- An order form shows: 'Glucose tolerance test (GTT) - 3 hour, fasting baseline, then 75g glucose load'. The appointment is scheduled for 0800, but the patient arrives at 0845 reporting they fasted since 2000 last night but took their metformin as usual at 0700 this morning. What verification issue takes priority?
Answer: The metformin administration may affect GTT results and should be verified with the provider before proceeding with the glucose challenge
Metformin significantly affects glucose metabolism and GTT interpretation. Many protocols require holding metformin before GTT testing. This medication issue takes priority over timing concerns. Choice A overemphasizes the 45-minute delay which, while not ideal, doesn't necessarily invalidate the test. Choice C incorrectly suggests that longer fasting (12+ hours vs. minimum 8-10 hours) is problematic. Choice D doesn't prioritize the critical medication interaction that could invalidate test results.
