NCLEX-RN
NCLEX RN Exam Preview Answers
1. 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.
2. How does the procedure for taking a pulse rate on an infant differ from an adult?
- A. Pulse rates are taken on infants using a different method.
- B. The apical pulse method is used on infants.
- C. Pulse rates on infants are taken with a sphygmomanometer.
- D. Pulse rates on infants are taken apically in the third intercostal space.
Correct answer: B
Rationale: The correct answer is B: The apical pulse method is used on infants. This method involves placing a stethoscope in the fifth intercostal space, mid-clavicular line, and counting the beats for a full minute. It is a preferred method for infants due to their small size and the difficulty in palpating peripheral pulses accurately. Choices A, C, and D are incorrect. Choice A is incorrect as pulse rates are indeed taken on infants, albeit using a different method. Choice C is incorrect as a sphygmomanometer is typically used for measuring blood pressure, not pulse rates. Choice D is incorrect as pulse rates on infants are usually taken apically in the fifth intercostal space, not the third.
3. The healthcare provider is examining a patient who is reporting "feeling cold."? Which is a mechanism of heat loss in the body?
- A. Exercise
- B. Radiation
- C. Metabolism
- D. Food digestion
Correct answer: B
Rationale: When the body needs to lose heat, one of the mechanisms it employs is radiation. Radiation involves the transfer of heat from the body to the environment in the form of infrared waves. While metabolism, exercise, and food digestion contribute to heat production, they are not mechanisms for heat loss. Metabolism generates heat as a byproduct, exercise increases metabolic rate leading to heat production, and food digestion involves some heat generation, but these processes do not directly facilitate heat loss. Therefore, in the scenario where the patient is feeling cold, radiation is the primary mechanism for the body to lose excess heat and maintain a stable internal temperature.
4. When preparing a patient on complete bed rest to eat, at what degree angle or more should you put the head of the bed up?
- A. 10
- B. 15
- C. 20
- D. 30
Correct answer: D
Rationale: The correct answer is D: 30. When a patient is on complete bed rest, it is essential to elevate the head of the bed at a 30-degree angle or more before meals. This position helps prevent choking and aspiration of food during eating by promoting proper swallowing and digestion. Choices A, B, and C are incorrect because they do not provide the optimal elevation needed to support safe and effective feeding for a patient on complete bed rest.
5. Which of these techniques uses the sense of touch to assess texture, temperature, moisture, and swelling when assessing a patient?
- A. Palpation
- B. Inspection
- C. Percussion
- D. Auscultation
Correct answer: A
Rationale: The correct answer is Palpation. Palpation involves using the sense of touch to assess texture, temperature, moisture, and swelling in a patient. This technique allows the nurse to feel for abnormalities and changes in the patient's tissues. Inspection primarily relies on visual assessment, while percussion involves tapping on the body to produce sounds and assess underlying structures. Auscultation, on the other hand, involves listening to sounds within the body using a stethoscope. Therefore, in the context of assessing texture, temperature, moisture, and swelling, palpation is the most appropriate technique.
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