NCLEX-RN
NCLEX RN Exam Preview Answers
1. While auscultating heart sounds, the nurse hears a murmur. Which of these instruments would be used to assess this murmur?
- A. Electrocardiogram
- B. Bell of the stethoscope
- C. Diaphragm of the stethoscope
- D. Palpation with the nurse's palm of the hand
Correct answer: B
Rationale: The correct instrument to assess a murmur while auscultating heart sounds is the bell of the stethoscope. An electrocardiogram is used to measure the heart's electrical activity, not to assess murmurs. Palpation with the nurse's palm of the hand is a method to assess pulses or textures, not heart murmurs. The diaphragm of the stethoscope is typically used for high-pitched sounds like breath, bowel, and normal heart sounds, whereas the bell is more suitable for soft, low-pitched sounds such as murmurs or extra heart sounds.
2. The nurse suspects that a client is withholding health-related information out of fear of discovery and possible legal problems. The nurse formulates nursing diagnoses for the client carefully, being concerned about a diagnostic error resulting from which of the following?
- A. Incomplete data
- B. Generalizing from experience
- C. Identifying with the client
- D. Lack of clinical experience
Correct answer: A
Rationale: In this scenario, the nurse is cautious about potential diagnostic errors due to incomplete data. When a client withholds information, it can lead to incomplete data, which may result in inaccurate nursing diagnoses and care planning. Therefore, the nurse's primary concern is collecting accurate data to make informed clinical decisions. Choices B, C, and D are not relevant to the situation described. Generalizing from experience, identifying with the client, and lack of clinical experience do not directly address the issue of incomplete data impacting the diagnostic process.
3. During change-of-shift report, the nurse learns about the following four patients. Which patient requires assessment first?
- A. 40-year-old with chronic pancreatitis who has gnawing abdominal pain
- B. 58-year-old who has compensated cirrhosis and is complaining of anorexia
- C.
- D. 36-year-old recovering from a laparoscopic cholecystectomy who has severe shoulder pain
Correct answer: C
Rationale:
4. The healthcare professional notices that a colleague is preparing to check the blood pressure of a patient who is obese by using a standard-sized blood pressure cuff. How would this likely affect the blood pressure reading?
- A. Yield a falsely low blood pressure
- B. Yield a falsely high blood pressure
- C. Be the same, regardless of cuff size
- D. Vary as a result of the technique of the person performing the assessment
Correct answer: B
Rationale: Using a cuff that is too narrow for an obese patient would likely yield a falsely high blood pressure reading. This occurs because the standard cuff is too small for the arm's circumference, requiring more pressure to compress the artery. A tight cuff can lead to inaccurate and elevated blood pressure readings. Choices A, C, and D are incorrect because using an improperly sized cuff would not yield a falsely low blood pressure, the blood pressure reading does vary with cuff size, and the technique of the person performing the assessment is not the primary factor affecting the reading in this situation.
5. Which of these guidelines would a healthcare professional follow when measuring a patient's weight?
- A. The patient is always weighed wearing only undergarments.
- B. The type of scale matters and should be consistent day to day.
- C. The patient should remove heavy outer clothing, shoes, and jackets before weighing.
- D. Attempts should be made to weigh the patient at approximately the same time of day if a sequence of weights is necessary.
Correct answer: D
Rationale: When measuring a patient's weight, it is important to ensure accuracy and consistency. If a sequence of repeated weights is necessary, the healthcare professional should attempt to weigh the patient at the same time of day and with the same types of clothing worn each time. It is crucial to use a standardized balance or electronic standing scale for accurate weight measurement. Choice A is incorrect as patients should remove heavy outer clothing, shoes, and jackets before being weighed for accurate results. Choice B is incorrect because the type of scale used does matter and should be consistent for reliable weight tracking. Choice C is incorrect as patients should not leave on heavy outer clothing, shoes, or jackets as these items can add to the weight recorded inaccurately.
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