NCLEX-RN
NCLEX RN Actual Exam Test Bank
1. Which brain structure serves as the heat-regulating center?
- A. Hypothalamus
- B. Pituitary Gland
- C. Pons
- D. Medulla Oblongata
Correct answer: A
Rationale: The correct answer is the Hypothalamus. The hypothalamus is responsible for regulating body temperature, ensuring it stays within a narrow range. Moreover, the hypothalamus controls various essential bodily functions, such as hunger, thirst, and circadian rhythms. Choices B, C, and D are incorrect because the Pituitary Gland primarily produces and releases hormones, the Pons is involved in functions like sleep, respiration, and bladder control, and the Medulla Oblongata controls vital functions like breathing and heart rate, but not body temperature regulation.
2. Which of the following may represent an upper airway obstruction?
- A. Retractions
- B. Elongated expiratory phase
- C. Stridor
- D. Expiratory wheezing
Correct answer: C
Rationale: Stridor is the sound produced by turbulent airflow through a partially obstructed upper airway. It is a classic sign of upper airway obstruction. While an elongated expiratory phase may indicate lower airway obstruction, stridor specifically points to an upper airway issue. Retractions are also often seen in upper airway obstruction due to the increased effort of breathing. Expiratory wheezing, on the other hand, is more indicative of lower airway conditions such as asthma or chronic obstructive pulmonary disease (COPD).
3. After performing the appropriate client assessment, which of the following inferences would the nurse make?
- A. Client is hypotensive
- B. Respiratory rate of 20 breaths per minute
- C. Oxygen saturation of 95%
- D. Client relays anxiety about blood work
Correct answer: A
Rationale: An inference is the nurse's judgment or interpretation of cues gathered during an assessment. In this scenario, identifying a client as hypotensive would be an inference based on blood pressure readings that indicate lower than normal values. Respiratory rate and oxygen saturation levels (choices B and C) are important cues that provide additional data but do not directly point to a specific conclusion like hypotension. The client expressing anxiety about blood work (choice D) is relevant information but relates more to their emotional state rather than a physiological assessment finding.
4. When caring for a single client during one shift, it is appropriate for the nurse to reuse only which of the following personal protective equipment?
- A. Goggles
- B. Gown
- C. Surgical mask
- D. Clean gloves
Correct answer: A
Rationale: Goggles may be reused unless they are overly contaminated by material that has splashed in the nurse's face and cannot be effectively rinsed off. Gowns are at high risk for contamination and should be used only once and then discarded or washed. Surgical masks and gloves should never be washed or reused. Goggles provide eye protection from splashes and should be cleaned and disinfected after each use to ensure proper protection.
5. Which of the following is a disadvantage of using a dry heat application?
- A. Dry heat is more likely to cause burns than moist heat
- B. Dry heat does not penetrate deeply into the tissues
- C. Dry heat causes the skin to dry out more quickly
- D. Dry heat can quickly cause skin breakdown
Correct answer: C
Rationale: The correct answer is that dry heat causes the skin to dry out more quickly. When comparing dry and moist heat applications, dry heat is less likely to cause burns and skin breakdown. However, one of the disadvantages of dry heat is that it does not penetrate deeply into the tissues and may lead to faster drying out of the skin. This can have negative effects on skin integrity and overall comfort during therapy. Choice A is incorrect because dry heat is less likely to cause burns than moist heat. Choice B is incorrect as dry heat may not penetrate deeply into tissues. Choice D is incorrect as dry heat is less likely to cause skin breakdown compared to moist heat.
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