NCLEX-RN
NCLEX RN Exam Preview Answers
1. The healthcare provider is reviewing theories of illness. The germ theory, which states that microscopic organisms such as bacteria and viruses are responsible for specific disease conditions, is a basic belief of which theory of illness?
- A. Holistic
- B. Biomedical
- C. Naturalistic
- D. Magicoreligious
Correct answer: B
Rationale: The correct answer is B: Biomedical. Among the biomedical explanations for disease is the germ theory, which states that microscopic organisms such as bacteria and viruses are responsible for specific disease conditions. The naturalistic or holistic perspective holds that the forces of nature must be kept in natural balance. The magicoreligious perspective holds that supernatural forces dominate and cause illness or health. Therefore, options A, C, and D are incorrect as they do not align with the germ theory explanation provided in the question.
2. After receiving change-of-shift report, which patient should the nurse assess first?
- A. A patient with pneumonia who has crackles in the right lung base
- B. A patient with possible lung cancer who has just returned after bronchoscopy
- C. A patient with hemoptysis and a 16-mm induration with tuberculin skin testing
- D. A patient with chronic obstructive pulmonary disease (COPD) and pulmonary function testing (PFT) that indicates low forced vital capacity
Correct answer: B
Rationale: The correct answer is the patient with possible lung cancer who has just returned after bronchoscopy. After bronchoscopy, the patient may have decreased cough and gag reflexes, necessitating immediate assessment for airway patency to prevent potential complications. The other patients do not exhibit urgent clinical manifestations or have undergone recent procedures that require immediate attention. Therefore, they can be assessed after ensuring the safety and stability of the patient who has just returned after bronchoscopy.
3. Which of the following descriptions best describes the function of the thyroid gland?
- A. The thyroid gland converts glucose into glycogen
- B. The thyroid gland secretes cortisol during times of stress
- C. The thyroid gland regulates body metabolism
- D. The thyroid gland affects skin pigmentation
Correct answer: C
Rationale: The thyroid gland is responsible for secreting thyroxine (T4) and triiodothyronine (T3), which work to regulate the metabolism of the body's cells. The primary function of the thyroid gland is to control the body's metabolic rate, affecting processes such as heart rate, temperature regulation, and energy levels. Choices A, B, and D are incorrect because the thyroid gland is not involved in converting glucose into glycogen, secreting cortisol, or affecting skin pigmentation. Instead, the primary role of the thyroid gland is to regulate the metabolism and energy balance in the body.
4. During a heritage assessment, which question is most appropriate for the nurse to ask?
- A. "Do you smoke?"?
- B. "What is your religion?"?
- C. "Do you have a history of heart disease?"?
- D. "How many years have you lived in the United States?"?
Correct answer: D
Rationale: During a heritage assessment, it is crucial for the nurse to ask questions related to a person's country of ancestry, years in the United States, cultural practices, beliefs, and values. By asking about the number of years lived in the United States, the nurse can gain insights into the individual's cultural background and heritage. Options B, C, and A are not directly related to assessing heritage. Asking about religion only addresses one aspect of heritage, while smoking history and health history do not provide a comprehensive view of a person's heritage.
5. The healthcare provider is preparing to use an otoscope for an examination. Which statement is true regarding the otoscope?
- A. Often used to direct light into the sinuses
- B. Used to examine the structures of the internal ear
- C. Uses a short, broad speculum to help visualize the ear
- D. Directs light into the ear canal and onto the tympanic membrane
Correct answer: D
Rationale: The otoscope is a tool used to examine the ear canal and tympanic membrane, which separates the external and middle ear. It is not intended to direct light into the sinuses or examine the internal structures of the ear. The otoscope typically uses a short, narrow speculum to aid in visualizing the ear canal and tympanic membrane, not a short, broad speculum as mentioned in choice C.
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