NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. When measuring a patient's body temperature, what factor should be considered that can influence the temperature?
- A. Constipation
- B. Diurnal cycle
- C. Nocturnal cycle
- D. Patient's emotional state
Correct answer: B
Rationale: When measuring body temperature, it is essential to consider factors that can influence it. The diurnal cycle, which refers to the body's natural temperature variations throughout a 24-hour period, can impact body temperature readings. Factors like exercise, age, and environment can also affect body temperature. Constipation does not directly influence body temperature. The 'nocturnal cycle' is not a recognized term in relation to body temperature. While a patient's emotional state can affect vital signs, it is not a primary factor in influencing body temperature measurements.
2. The categories such as ethnicity, gender, and religion illustrate which concept?
- A. Family
- B. Cultures
- C. Spirituality
- D. Subcultures
Correct answer: D
Rationale: Within cultures, various groups of people share different beliefs, values, and attitudes due to factors such as ethnicity, religion, education, occupation, age, and gender. When these distinct groups coexist within a broader culture, they are referred to as subcultures. While ethnicity, gender, and religion are important components of individuals' identities, they do not represent the concepts of family, cultures, or spirituality. The correct answer is 'Subcultures' as these categories reflect differences within a larger cultural context, emphasizing the unique characteristics shared by members of subcultural groups.
3. What does the term 'Afferent Nerve' mean?
- A. Carrying an impulse to the brain
- B. Carrying an impulse away from the brain
- C. Carrying impulses to the motor neurons of the appendicular muscles
- D. None of the above
Correct answer: A
Rationale: The correct answer is 'Carrying an impulse to the brain.' Afferent nerves are sensory nerves that carry signals from sensory receptors towards the central nervous system, including the brain. Choice B, 'Carrying an impulse away from the brain,' is incorrect as this describes efferent nerves which carry signals from the central nervous system to muscles and glands. Choice C, 'Carrying impulses to the motor neurons of the appendicular muscles,' is incorrect as it describes a different type of nerve function. Choice D, 'None of the above,' is incorrect as the correct definition of afferent nerve is indeed 'Carrying an impulse to the brain.'
4. The most accurate reading for a temperature is done:
- A. Orally
- B. Aurally through a clean canal
- C. Rectally
- D. Axially
Correct answer: B
Rationale: Aural readings are done through the ear canal. The tympanic membrane shares a blood supply with the hypothalamus, the brain area that regulates body temperature. Taking the temperature aurally through a clean canal ensures an accurate reading. Choice A (Orally) is not the most accurate method for temperature measurement as it can be affected by external factors like drinking hot or cold liquids. Choice C (Rectally) is invasive and less practical for routine temperature monitoring. Choice D (Axially) is not a standard method for temperature measurement and may not provide accurate results.
5. Rales and rhonchi are frequently noted during an examination of lung sounds. What is the difference between the two?
- A. Rales are louder.
- B. Rhonchi are noted only in infants.
- C. Rales occur on inspiration, rhonchi on expiration.
- D. Rales are noted only in infants.
Correct answer: C
Rationale: The correct answer is that rales occur on inspiration, while rhonchi occur on expiration. Rales are typically heard during inhalation when there is fluid in the alveoli or air passages. Rhonchi, on the other hand, are caused by air passing through obstructed airways during exhalation due to secretions in the respiratory tract. Choice A is incorrect because the loudness of the sounds is not the primary distinguishing factor between rales and rhonchi. Choice B is incorrect as rhonchi can be heard in individuals beyond infancy. Choice D is incorrect as rales can be present in patients of various age groups, not just infants.
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