Certified Patient Care Technician/Assistant (CPCT/A) Quiz: Oxygen And Suction Setup
10 questions · exam conditions
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Oxygen And Suction SetupQuestion 1 of 10

A CPCT/A is setting up oxygen equipment for a patient who has both COPD and is currently experiencing anxiety. The order reads 'O2 at 2 L/min via NC, titrate to maintain SpO2 88-92%.' The patient's current SpO2 is 85% on room air. After applying oxygen at 2 L/min, the SpO2 increases to 94%. What adjustment should be made?

Increase oxygen to 3 L/min since the patient has COPD and higher levels are often needed for these patients
Decrease oxygen to 1 L/min to bring the SpO2 into the target range of 88-92% as ordered for this patient
Maintain current settings since 94% is close to the target range and the patient's anxiety may be affecting readings
Switch to a simple face mask at 6 L/min to provide more stable oxygen delivery for this anxious patient
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Certified Patient Care Technician/Assistant (CPCT/A) Quiz

Certified Patient Care Technician/Assistant (CPCT/A) Quiz: Oxygen And Suction Setup

Practice Oxygen And Suction Setup in Certified Patient Care Technician/Assistant (CPCT/A) with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Oxygen And Suction Setup, giving you a quick way to practice the rules, question types, and explanations that matter most for Certified Patient Care Technician/Assistant (CPCT/A).

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

A CPCT/A is setting up oxygen equipment for a patient who has both COPD and is currently experiencing anxiety. The order reads 'O2 at 2 L/min via NC, titrate to maintain SpO2 88-92%.' The patient's current SpO2 is 85% on room air. After applying oxygen at 2 L/min, the SpO2 increases to 94%. What adjustment should be made?

  1. Increase oxygen to 3 L/min since the patient has COPD and higher levels are often needed for these patients
  2. Decrease oxygen to 1 L/min to bring the SpO2 into the target range of 88-92% as ordered for this patient (correct answer)
  3. Maintain current settings since 94% is close to the target range and the patient's anxiety may be affecting readings
  4. Switch to a simple face mask at 6 L/min to provide more stable oxygen delivery for this anxious patient
Explanation: For COPD patients, the target SpO2 of 88-92% is intentionally lower to prevent CO2 retention. The current SpO2 of 94% exceeds this target, so oxygen should be decreased to 1 L/min. Choice A would worsen CO2 retention risk. Choice C ignores the specific titration order and safe COPD oxygen management. Choice D provides excessive oxygen and changes the delivery method without justification.

Question 2

A patient with sleep apnea is being set up with oxygen therapy via nasal cannula at 3 L/min for overnight use. The CPCT/A notices the patient breathes primarily through their mouth when sleeping. The night nurse mentions the patient's SpO2 drops to 86% during sleep despite the oxygen. What equipment adjustment would best address this situation?

  1. Increase the nasal cannula flow rate to 5 L/min to compensate for the mouth breathing pattern during sleep
  2. Change to a partial rebreather mask at 8 L/min to provide higher oxygen concentration for sleep apnea episodes
  3. Apply a chin strap to encourage nasal breathing and improve the effectiveness of the nasal cannula oxygen delivery
  4. Switch to a simple face mask at 6 L/min to ensure oxygen delivery regardless of breathing pattern preferences (correct answer)
Explanation: When you encounter oxygen therapy questions involving patients who mouth-breathe, focus on matching the delivery method to the patient's actual breathing pattern rather than trying to force a change in their natural behavior. Answer D is correct because a simple face mask at 6 L/min delivers oxygen regardless of whether the patient breathes through their nose or mouth. Since this patient primarily mouth-breathes during sleep, the nasal cannula becomes ineffective—oxygen flows into the nose but the patient isn't breathing through it. A face mask covers both the nose and mouth, ensuring oxygen delivery matches the patient's natural breathing pattern. The 6 L/min flow rate is appropriate for a simple face mask and should help address the low SpO2 of 86%. Answer A is wrong because increasing nasal cannula flow won't help if the patient isn't breathing through their nose—you're just delivering more oxygen to the wrong place. Answer B suggests a partial rebreather mask, but this delivers unnecessarily high oxygen concentrations and requires higher flow rates that aren't needed for this situation. Answer C attempts to force the patient to change their breathing pattern with a chin strap, but this is uncomfortable during sleep and fights against the patient's natural physiology rather than accommodating it. For CPCT/A oxygen therapy questions, remember this key principle: match the delivery device to how the patient actually breathes, not how you think they should breathe. Comfort and compliance are essential for effective overnight therapy.

Question 3

When setting up wall suction for a post-operative patient, the CPCT/A tests the system and finds that suction pressure builds up normally to 120 mmHg when the tubing is occluded, but drops to 40 mmHg when a suction catheter is attached and activated. The wall suction gauge shows normal function. What is the most likely explanation for this pressure drop?

  1. The suction catheter has a manufacturing defect creating excessive air leakage through the catheter wall material
  2. This pressure drop is normal and expected when transitioning from occluded testing to actual catheter use in clinical practice
  3. The suction catheter is too small in diameter, creating excessive resistance and preventing adequate pressure maintenance
  4. There is a poor connection between the suction catheter and the connecting tubing, allowing air to enter the system (correct answer)
Explanation: A significant pressure drop from 120 mmHg to 40 mmHg when attaching a catheter indicates air entering the system, most commonly from a poor connection. This prevents proper vacuum maintenance. Choice A is unlikely as manufacturing defects in catheter walls are rare. Choice B is incorrect because this degree of pressure drop is not normal. Choice C is wrong because smaller catheters would maintain pressure better, not worse.

Question 4

While setting up wall suction for oral suctioning, the CPCT/A connects the tubing and turns the suction to 120 mmHg. When testing the suction by occluding the tubing end, no suction is felt and the pressure gauge reads zero. The wall suction outlet appears to be functioning normally. What is the most likely cause of this problem?

  1. The suction catheter is too large for the tubing diameter, creating a poor seal throughout the system
  2. The pressure setting of 120 mmHg is insufficient for oral suctioning and should be increased to 150 mmHg
  3. There is a loose connection or leak somewhere in the tubing assembly between the wall outlet and collection canister (correct answer)
  4. The collection canister is overfilled with secretions, preventing proper vacuum pressure from being maintained in the system
Explanation: When suction pressure reads zero despite the wall outlet functioning, the most common cause is a loose connection or leak in the tubing system. This prevents proper vacuum from building up. Choice A is incorrect because catheter size affects flow rate, not complete loss of suction. Choice B is wrong since 120 mmHg is appropriate for oral suctioning. Choice D is incorrect because an overfilled canister would show some pressure, not zero pressure.

Question 5

When setting up suction equipment for a patient with a tracheostomy, the CPCT/A notes that the previous suction pressure was set at 80 mmHg. The nurse indicates this patient requires more aggressive suctioning due to thick secretions. What is the maximum appropriate suction pressure for adult tracheostomy suctioning?

  1. 100-120 mmHg, as higher pressures are needed for tracheostomy suctioning compared to oral suctioning procedures (correct answer)
  2. 150-180 mmHg, since thick secretions require maximum suction pressure to ensure complete airway clearance
  3. 200-250 mmHg, because tracheostomy patients can tolerate higher pressures due to direct airway access
  4. 300 mmHg or higher, as this matches the pressure used for chest tube suction systems in similar patients
Explanation: For adult tracheostomy suctioning, the maximum safe pressure is 100-120 mmHg. This provides effective suctioning while preventing tissue damage. Choice B exceeds safe limits and can cause mucosal trauma and bleeding. Choice C is dangerously high and can cause severe tissue damage and cardiovascular complications. Choice D confuses chest tube suction pressures with airway suctioning and would cause immediate harm to respiratory tissues.

Question 6

A patient with COPD is ordered oxygen therapy at 2 L/min via nasal cannula. When setting up the equipment, the CPCT/A notices the oxygen flowmeter reads 4 L/min but the physician's order specifies 2 L/min. The patient appears comfortable and has an oxygen saturation of 96%. What is the most appropriate immediate action?

  1. Leave the oxygen at 4 L/min since the patient's saturation is acceptable and notify the nurse of the discrepancy
  2. Adjust the flowmeter to 2 L/min as ordered and document the correction made to the previous incorrect setting (correct answer)
  3. Discontinue the oxygen temporarily and contact the physician to clarify whether 2 L/min or 4 L/min is correct
  4. Gradually decrease the flow from 4 L/min to 2 L/min over 15 minutes to prevent sudden oxygen level changes
Explanation: The CPCT/A must follow the physician's order exactly as written. Oxygen is considered a medication and must be administered at the prescribed flow rate. The correct action is to adjust to 2 L/min as ordered and document the correction. Choice A is wrong because exceeding ordered oxygen levels can cause CO2 retention in COPD patients. Choice C is unnecessary since there's a clear order to follow. Choice D is not a standard protocol and delays proper treatment.

Question 7

During setup of portable suction equipment for patient transport, the CPCT/A discovers that the battery indicator shows only 25% charge remaining. The transport to radiology is expected to take 45 minutes including waiting time. The suction unit specifications indicate 2 hours of operation at full charge. What is the most appropriate action?

  1. Proceed with transport since 25% charge provides 30 minutes of operation, which should be adequate for the procedure
  2. Replace the portable unit with a fully charged backup device to ensure adequate suction availability throughout transport (correct answer)
  3. Charge the unit for 15 minutes before transport to increase battery life, then proceed with the original equipment
  4. Transport the patient without suction equipment since most radiology procedures are brief and suctioning is rarely needed
Explanation: Patient safety requires ensuring adequate suction availability throughout the entire transport period. A backup unit with full charge eliminates any risk of equipment failure. Choice A is risky because 25% of 2 hours is 30 minutes, which leaves no safety margin for unexpected delays. Choice C provides insufficient charge time and still creates risk. Choice D is unsafe because suction capability must be available whenever the patient has potential airway compromise.

Question 8

While setting up suction equipment in the ICU, the CPCT/A notices that the collection canister contains approximately 200 mL of bloody secretions from the previous patient. The canister capacity is 800 mL, and a new patient requiring frequent suctioning is being admitted. What is the most appropriate action regarding the collection canister?

  1. Empty and replace the canister since cross-contamination prevention requires fresh equipment for each new patient assignment (correct answer)
  2. Continue using the current canister since it is only 25% full and can accommodate additional secretions from the new patient
  3. Add fresh sterile water to the canister to dilute the existing secretions and create more capacity for new drainage
  4. Mark the current fluid level and monitor closely, replacing the canister only when it reaches 75% capacity during care
Explanation: Infection control principles require using clean equipment for each new patient to prevent cross-contamination. The canister must be emptied and replaced regardless of volume remaining. Choice B violates basic infection control by exposing the new patient to previous patient's secretions. Choice C is inappropriate and doesn't address contamination concerns. Choice D fails to follow standard precautions for preventing healthcare-associated infections.

Question 9

A patient receiving oxygen via simple face mask at 8 L/min reports feeling claustrophobic and keeps removing the mask. The physician's order states 'oxygen to maintain SpO2 >92%.' The patient's current oxygen saturation is 89% with the mask off. What equipment modification would be most appropriate?

  1. Switch to a nasal cannula at 6 L/min to provide equivalent oxygen delivery while reducing the claustrophobic sensation (correct answer)
  2. Change to a partial rebreather mask at 10 L/min to increase oxygen concentration and compensate for patient intolerance
  3. Apply a Venturi mask at 35% oxygen concentration to provide precise oxygen delivery with less facial coverage
  4. Use an oxygen tent setup to deliver humidified oxygen without any device touching the patient's face directly
Explanation: A nasal cannula at 6 L/min can provide similar oxygen delivery to a simple face mask at 8 L/min while being much more comfortable and less claustrophobic. This addresses both the patient's comfort and oxygen needs. Choice B uses a more confining mask that would worsen claustrophobia. Choice C provides lower oxygen concentration than needed. Choice D is not practical for adult patients and is primarily used in pediatric settings.

Question 10

A CPCT/A is setting up oxygen equipment for a patient who will be ambulating in the hallway. The patient requires continuous oxygen at 3 L/min and will be walking approximately 150 feet from their room to the physical therapy department. Which equipment setup would be most appropriate for this situation?

  1. Portable oxygen concentrator set to 3 L/min with a 50-foot extension tubing to maintain connection to the room outlet
  2. Small portable oxygen tank with conserving device set to deliver oxygen only during inspiration at 3 L/min equivalent
  3. Large wheeled oxygen tank with 25 feet of oxygen tubing to allow freedom of movement while maintaining continuous flow (correct answer)
  4. Standard nasal cannula connected to wall oxygen with 100 feet of extension tubing to reach the therapy department
Explanation: For ambulation requiring continuous oxygen, a large wheeled oxygen tank provides the mobility needed while delivering the prescribed continuous flow rate. Choice A is incorrect because extension tubing that long creates safety hazards and mobility restrictions. Choice B changes the delivery method from continuous to intermittent without physician order. Choice D is unsafe due to excessive tubing length creating trip hazards and potential disconnection.