NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. When auscultating the blood pressure of a 25-year-old patient, the nurse notices that the phase I Korotkoff sounds begin at 200 mm Hg. At 100 mm Hg, the Korotkoff sounds muffle. At 92 mm Hg, the Korotkoff sounds disappear. How should the nurse record this patient's blood pressure?
- A. 200/92
- B. 200/100
- C. 100/200/92
- D. 200/100/92
Correct answer: A
Rationale: When auscultating blood pressure, it is crucial to note the points at which Korotkoff sounds change. In adults, the last audible sound indicates the diastolic pressure. In this case, the Korotkoff sounds muffle at 100 mm Hg and disappear at 92 mm Hg. Therefore, the blood pressure should be recorded as systolic/diastolic, which is 200/92. Choices B, C, and D are incorrect because they do not reflect the correct points where the Korotkoff sounds change during blood pressure measurement.
2. A 75-year-old man with a history of hypertension was recently changed to a new antihypertensive drug. He reports feeling dizzy at times. How would the nurse evaluate his blood pressure?
- A. Blood pressure and pulse should be recorded in the supine, sitting, and standing positions.
- B. The patient should be directed to walk around the room and his blood pressure assessed after this activity.
- C. Blood pressure and pulse are assessed at the beginning and at the end of the examination.
- D. Blood pressure is taken on the right arm and then 5 minutes later on the left arm.
Correct answer: A
Rationale: Orthostatic vital signs should be taken when the person is hypertensive or is taking antihypertensive medications, when the person reports fainting or syncope, or when volume depletion is suspected. The blood pressure and pulse readings are recorded in the supine, sitting, and standing positions.
3. What are Korotkoff sounds?
- A. Sounds noted during diastole.
- B. The result of the vibration of blood against artery walls while blood pressure readings are being taken.
- C. Sounds only noted by skilled cardiologists.
- D. Distinct sounds which are classified into 6 phases.
Correct answer: B
Rationale: Korotkoff sounds are the sounds that occur when blood flows in an artery that has been temporarily compressed during a blood pressure measurement. These sounds result from the vibration of blood against the artery walls as the pressure cuff is released. There are five distinct phases of Korotkoff sounds, which healthcare providers are trained to identify during blood pressure assessment. The correct answer, choice B, accurately describes the nature of Korotkoff sounds and how they are generated. Choices A, C, and D are incorrect because Korotkoff sounds are not specific to diastole, not limited to skilled cardiologists, and categorized into five phases, not six.
4. Which theory reflects the view that illness is caused by an imbalance or disharmony in the forces of nature?
- A. Germ theory
- B. Naturalistic theory
- C. Magicoreligious theory
- D. Biomedical or scientific theory
Correct answer: B
Rationale: The naturalistic theory posits that illness results from an imbalance or disharmony in the forces of nature. According to this theory, maintaining a natural balance or harmony is essential to prevent illness. Conversely, germ theory and biomedical or scientific theory attribute illness to microorganisms, while magicoreligious theory attributes illness to supernatural forces such as deities or spirits. Therefore, the most appropriate theory reflecting the belief that illness arises from a disruption in natural forces is the naturalistic theory.
5. Which of the following is a negative outcome associated with impaired mobility?
- A. Increased amounts of calcium are absorbed from circulation
- B. A drop in blood pressure occurs when rising from a sitting to a standing position
- C. The amount of mucus in the bronchi and lungs decreases
- D. The vessel walls of the circulatory system thicken
Correct answer: B
Rationale: A client with impaired mobility may develop changes in body systems that put them at risk of further illness or injury. One negative outcome associated with impaired mobility is orthostatic hypotension, where blood pressure drops significantly when moving from a sitting or lying position to a standing position. This drop in blood pressure can lead to symptoms such as dizziness or fainting. This occurs because blood circulates more slowly or pools in the distal extremities due to impaired mobility. Choice A is incorrect because increased calcium absorption is not a typical negative outcome associated with impaired mobility. Choice C is incorrect because a decrease in mucus in the bronchi and lungs is not a common negative outcome of impaired mobility. Choice D is incorrect because thickening of vessel walls in the circulatory system is not directly associated with impaired mobility.
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