NCLEX-RN
NCLEX RN Exam Preview Answers
1. The healthcare professional is preparing to use a stethoscope for auscultation. Which statement is true regarding the diaphragm of the stethoscope?
- A. Used to listen for high-pitched sounds
- B. Used to listen for low-pitched sounds
- C. Should be firmly held against the person's skin to block out low-pitched sounds
- D. Should be lightly held against the person's skin to listen for extra heart sounds and murmurs
Correct answer: A
Rationale: The diaphragm of the stethoscope is designed for listening to high-pitched sounds like breath, bowel, and normal heart sounds. It should be firmly held against the person's skin to ensure optimal sound transmission, leaving a ring after use. On the other hand, the bell of the stethoscope is ideal for detecting soft, low-pitched sounds such as extra heart sounds or murmurs. Therefore, the diaphragm is not used to block out low-pitched sounds but rather to enhance the detection of high-frequency sounds.
2. What type of blood pressure measurement error is most likely to occur if the nurse does not check for the presence of an auscultatory gap?
- A. Diastolic blood pressure may not be heard.
- B. Diastolic blood pressure may be falsely low.
- C. Systolic blood pressure may be falsely low.
- D. Systolic blood pressure may be falsely high.
Correct answer: C
Rationale: If an auscultatory gap is undetected, a falsely low systolic reading may occur. This gap can lead to an underestimation of the systolic blood pressure, causing potential misinterpretation of the patient's condition. The diastolic blood pressure may not be heard due to the gap, but the critical issue in this scenario is the risk of underestimating systolic blood pressure, which can impact clinical decision-making. Choices B, C, and D are incorrect because the key concern in this context is the potential for a falsely low systolic blood pressure reading when an auscultatory gap is not assessed.
3. A client has become combative and is attempting to pull out his IV and take off his surgical dressings. The nurse receives an order to apply wrist restraints. Which action of the nurse signifies that restraints are being used safely?
- A. The nurse ties the restraints in a square knot to prevent the client from untying them
- B. The restraints are attached to a movable portion of the bed
- C. The padded side of the restraint is applied next to the skin of the wrist
- D. The nurse assesses the client's distal circulation every 24 hours
Correct answer: C
Rationale: Restraint use must prioritize the safety of the client. When applying restraints around the wrists, the padded side should be placed against the skin to help prevent skin breakdown. Additionally, restraints should be secured in quick-release knots to ensure they can be removed rapidly in case of an emergency. Choice A is incorrect as restraints should not be tied in a way that could prevent quick removal. Choice B is incorrect because restraints should not be attached to a movable part of the bed to avoid unintentional movement. Choice D is incorrect as assessing distal circulation is important but is not directly related to the safe application of restraints.
4. Which of the following situations indicates the need to file an incident report?
- A. The neon sign directing parking for visitors has burned out
- B. A nurse must send a syringe pump to maintenance for annual service
- C. A client's blood pressure dropped to 90/55 after receiving a dose of morphine
- D. A client's spouse becomes angry and is asked to leave the premises
Correct answer: D
Rationale: An incident report is necessary for documenting unexpected events that occur in a healthcare setting. Situations that warrant filing an incident report include client accidents, medication errors, security problems, or disruptive behaviors that involve clients, families, or visitors. In this scenario, when a client's spouse displays disruptive behavior and is asked to leave the premises, it is essential to document this incident to ensure a record of the event and its resolution. Choices A, B, and C do not involve disruptive behavior or safety concerns that would require an incident report to be filed.
5. Which technique of assessment will the healthcare provider use to determine the presence of crepitus, swelling, and pulsations?
- A. Palpation
- B. Inspection
- C. Percussion
- D. Auscultation
Correct answer: A
Rationale: Palpation involves using the sense of touch to assess various characteristics such as texture, temperature, moisture, organ location and size, as well as detecting swelling, pulsations, vibrations, rigidity, crepitus, lumps, masses, and tenderness or pain. In this scenario, the healthcare provider would utilize palpation to physically feel for crepitus, swelling, and pulsations. Inspection primarily relies on visual assessment, percussion involves assessing through palpable vibrations and audible sounds, and auscultation uses the sense of hearing. Therefore, the correct answer is palpation for assessing the presence of crepitus, swelling, and pulsations.
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