which of the following can cause a low pulse oximetry reading
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Nursing Elites

ATI LPN

PN ATI Capstone Proctored Comprehensive Assessment 2020 A with NGN

1. What can cause a low pulse oximetry reading?

Correct answer: C

Rationale: Inadequate peripheral circulation can cause a low pulse oximetry reading by limiting blood flow to the area being measured, leading to inaccurate oxygen saturation readings. Hyperthermia (choice A) is an elevated body temperature and does not directly affect pulse oximetry readings. An increased hemoglobin level (choice B) would actually lead to higher oxygen-carrying capacity in the blood, resulting in normal or increased pulse oximetry readings. Low altitudes (choice D) typically do not cause low pulse oximetry readings unless there are other underlying conditions affecting oxygen levels.

2. A nurse is supervising an LPN who is providing care to a patient who is postoperative. Which of the following statements by the patient requires the nurse to follow up with the LPN?

Correct answer: C

Rationale: If the patient states they have not received any medications, it requires immediate follow-up to prevent missed doses and complications. The other options do not pose an immediate risk to the patient. Option A indicates pain but is tolerable, which is a common postoperative experience. Option B states that vital signs were checked, indicating ongoing monitoring. Option D mentions therapy, which is a scheduled activity and not an urgent concern regarding medication administration.

3. A nurse is providing teaching to a client who has mild persistent asthma and has been prescribed montelukast. Which of the following statements should the nurse include in the teaching?

Correct answer: D

Rationale: Montelukast works as a leukotriene receptor antagonist, reducing inflammation and mucus production, which helps prevent asthma attacks but is not used for acute treatment. It is important for the client to understand that montelukast should be taken regularly to manage asthma symptoms and should not be abruptly discontinued. Taking the medication before exercise is not a typical instruction for montelukast.

4. A nurse is assessing a newborn 1 hour after birth. The newborn has acrocyanosis and a heart rate of 130 beats per minute. Which of the following actions should the nurse take?

Correct answer: D

Rationale: Acrocyanosis, a bluish discoloration of the hands and feet, is a normal finding in newborns within the first few hours after birth. The heart rate of 130 beats per minute is also within the normal range for a newborn. These findings are typical and do not require immediate intervention. The appropriate action for the nurse is to continue monitoring the newborn. Reassessing the newborn in 1 hour allows the nurse to observe any changes and ensure the newborn's condition remains stable. Placing the newborn under a radiant warmer or applying oxygen is not necessary as the newborn's condition is within normal limits. Swaddling the newborn may provide comfort but is not the priority action in this scenario.

5. A client in respiratory distress who is on oxygen is being cared for by a nurse. What is the most appropriate short-term goal?

Correct answer: D

Rationale: The correct answer is D because maintaining oxygen saturation of 90% is a specific, measurable short-term goal that ensures adequate oxygenation. Choice A is not a goal focused on the client's physiological status but rather on the equipment. Choice B is related to activities of daily living and does not address the respiratory distress issue. Choice C is subjective and may not reflect the actual physiological improvement in the client's condition.

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