NCLEX-RN
NCLEX RN Exam Preview Answers
1. When performing a physical examination, safety must be considered to protect the examiner and the patient against the spread of infection. Which of these statements describes the most appropriate action the nurse would take when performing a physical examination?
- A. Washing one's hands after removing gloves is necessary, even if the gloves are still intact
- B. Hands are washed before and after every physical patient encounter
- C. Hands are washed before the examination of each body system to prevent the spread of bacteria from one part of the body to another
- D. Gloves are worn throughout the entire examination to demonstrate concern regarding the spread of infectious diseases
Correct answer: B
Rationale: The most appropriate action for the nurse to take when performing a physical examination is to wash their hands before and after every physical patient encounter. This practice helps prevent the spread of infection. Hands should also be washed after contact with blood, body fluids, secretions, and excretions, and after contact with any equipment contaminated with body fluids. It is crucial to wash hands after removing gloves, even if the gloves appear intact. Choice A is incorrect because washing hands after removing gloves is necessary to ensure thorough hygiene. Choice C is incorrect because hands should be washed before and after every patient encounter, not just before examining each body system. Choice D is incorrect because gloves should be worn when there is potential contact with body fluids, but they do not need to be worn throughout the entire examination.
2. Who is legally able to make decisions for the patient or resident during a patient care conference when the patient is not mentally able to make decisions on their own?
- A. The patient or their healthcare proxy
- B. Only the patient
- C. Only the healthcare proxy
- D. The doctor
Correct answer: C
Rationale: When a patient is unable to make decisions due to mental incapacity, the healthcare proxy, designated by the patient in advance, has the legal authority to make decisions on the patient's behalf. In this situation, the patient lacks the capacity to make decisions independently. The healthcare proxy's role is to represent the patient's wishes and best interests. The doctor's role in a patient care conference is to provide medical expertise, offer recommendations, and assist in the decision-making process, but the final decision-making authority lies with the healthcare proxy, not the doctor.
3. 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.
4. 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.'
5. 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.
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