NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. Why should a palpated pressure be performed before auscultating blood pressure?
- A. To more clearly hear the Korotkoff sounds.
- B. To detect the presence of an auscultatory gap.
- C. To avoid missing a falsely elevated blood pressure.
- D. To more readily identify phase IV of the Korotkoff sounds.
Correct answer: B
Rationale: Performing a palpated pressure before auscultating blood pressure helps in detecting the presence of an auscultatory gap. An auscultatory gap is a period during blood pressure measurement when Korotkoff sounds temporarily disappear before reappearing. Inflation of the cuff 20 to 30 mm Hg beyond the point where a palpated pulse disappears helps in identifying this gap. This technique ensures accurate blood pressure measurement by preventing the underestimation of blood pressure values. The other options are incorrect because palpating the pressure is not primarily done to hear Korotkoff sounds more clearly, avoid missing falsely elevated blood pressure, or readily identify a specific phase of Korotkoff sounds.
2. In the term 'Hemoglobin,' the suffix '-globin' means:
- A. Protein
- B. Iron
- C. Metal
- D. Blood
Correct answer: A
Rationale: The suffix '-globin' in the term 'Hemoglobin' specifically refers to a protein. Hemoglobin is a protein found in red blood cells that carries oxygen. Choice B, 'Iron,' is incorrect as iron is a mineral component of hemoglobin but not the meaning of the suffix. Choice C, 'Metal,' is too broad and not specific to the meaning of the suffix in this context. Choice D, 'Blood,' is incorrect as it refers to the overall term 'Hemoglobin' rather than the specific meaning of the suffix '-globin.' Therefore, the correct answer is A: 'Protein.'
3. A client is about to have a TENS unit attached for pain relief. Which of the following actions is most appropriate in this situation?
- A. Inform the client that he may experience tingling sensations.
- B. Connect the TENS unit before the client goes to bed for the night.
- C. Inform the client that the TENS unit may have pain-reducing effects for 10 to 15 days.
- D. After treatment, inform the client that he may not use a TENS unit again for at least 2 weeks.
Correct answer: A
Rationale: When attaching a TENS unit for pain relief, it is essential to inform the client that he may experience tingling sensations. This is a common sensation experienced when using a TENS unit, but it should not cause muscle twitching. The therapeutic effects of a TENS unit usually last between 3 to 5 days. Choice B is incorrect because there is no specific recommendation to connect the TENS unit before bedtime. Choice C is incorrect as stating that the TENS unit may have pain-reducing effects for 10 to 15 days is inaccurate, as the effects typically last 3 to 5 days. Choice D is incorrect because there is no guideline suggesting that the client cannot use a TENS unit again for at least 2 weeks after treatment.
4. In which of the following ways can a nurse promote sleep for a client experiencing insomnia?
- A. Assist the client in using the bathroom one hour after going to bed
- B. Give the client a massage before bedtime
- C. Tuck bed sheets and blankets tightly around the client once settled in bed
- D. Give the client a pair of socks to wear if their feet become cold
Correct answer: D
Rationale: A nurse can promote sleep for a client experiencing insomnia by addressing factors that may hinder sleep. Cold feet can disrupt sleep, so providing the client with socks to keep their feet warm can enhance comfort and aid in promoting sleep. The correct answer focuses on a direct intervention to address a specific issue that can impact sleep quality. Choices A, B, and C do not directly address the issue of cold feet, which is a common problem that can interfere with sleep in individuals with insomnia. Assisting the client to use the bathroom, giving a massage in the morning, or tucking in bed sheets tightly do not target the discomfort caused by cold feet, making them less effective interventions for promoting sleep in this scenario.
5. While measuring a patient's blood pressure, which factor influences a patient's blood pressure?
- A. Pulse rate
- B. Pulse pressure
- C. Vascular output
- D. Peripheral vascular resistance
Correct answer: D
Rationale: When measuring a patient's blood pressure, it is important to consider various factors that influence blood pressure. Peripheral vascular resistance plays a crucial role in regulating blood pressure. The level of blood pressure is affected by factors such as cardiac output, peripheral vascular resistance, volume of circulating blood, viscosity, and elasticity of the vessel walls. Pulse rate (Choice A) refers to the number of heartbeats per minute and is not a primary factor influencing blood pressure. Pulse pressure (Choice B) is the difference between systolic and diastolic blood pressure and does not directly impact blood pressure regulation. Vascular output (Choice C) is not a recognized term in blood pressure regulation and is not a primary factor affecting blood pressure.
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