Nursing Elites

1. Which of the following represents a normal serum potassium level?

• A. 1.5 mEq/L
• B. 3.0 mEq/L
• C. 4.0 mEq/L
• D. 6.0 mEq/L

Correct answer: C

Rationale: The correct answer is 4.0 mEq/L. Normal serum potassium levels typically range from 3.5-5.5 mEq/L. Choice A (1.5 mEq/L) is below the normal range, Choice B (3.0 mEq/L) is also below the normal range, and Choice D (6.0 mEq/L) is above the normal range. Therefore, the only option within the normal range is Choice C (4.0 mEq/L).

2. What is the 24-hour day-night cycle known as?

• A. circadian rhythm
• B. infradian rhythm
• C. ultradian rhythm
• D. non-REM rhythm

Correct answer: A

Rationale: The correct answer is circadian rhythm. Circadian rhythm refers to the rhythmic repetition of patterns that occur approximately every 24 hours, regulating various biological processes related to the day-night cycle. Infradian rhythm, which is longer than 24 hours, and ultradian rhythm, which is shorter than 24 hours, are not the correct terms for the 24-hour cycle. Non-REM rhythm does not specifically relate to the 24-hour day-night cycle, making it an incorrect choice.

3. Which of these types of fluid output is not typically measured?

• A. chest tube drainage
• B. emesis
• C. evaporative water from the respiratory tract
• D. urine

Correct answer: D

Rationale: The correct answer is 'urine.' Urine output is routinely measured to assess renal function and fluid balance. Choices A, B, and C are types of fluid output that are typically measured in a clinical setting. Chest tube drainage is monitored to evaluate drainage from the chest cavity, emesis refers to vomitus which can indicate gastrointestinal issues, and evaporative water from the respiratory tract is considered insensible loss and is not directly measured but estimated in overall fluid balance assessments.

4. Following an automobile accident that caused a head injury to an adult client, the nurse observes that the client sleeps for long periods of time. The nurse determines that the client has experienced injury to the:

• A. hypothalamus.
• B. thalamus.
• C. cortex.
• D. medulla.

Correct answer: A

Rationale: The hypothalamus is responsible for regulating sleep patterns among other functions. Injury to the hypothalamus can disrupt the sleep-wake cycle, leading to excessive sleepiness or changes in sleep patterns. Choices B, C, and D are incorrect as they do not primarily control sleep regulation. The thalamus is involved in relaying sensory information, the cortex is responsible for higher brain functions, and the medulla controls vital functions such as heartbeat and breathing.

5. A nurse is taking a morning break with the unit secretary in the nurses' lounge. The unit secretary says to the nurse, 'I read in Mr. Gage's medical record that he has gonorrhea.' How should the nurse respond to the secretary?

• A. Yes, he does, but be sure not to discuss this with anyone else.
• B. Yes, that's why we've imposed contact precautions.
• C. We can't discuss a client's medical condition.
• D. Oh, really? I didn't see that!

Correct answer: C

Rationale: A client's medical condition is confidential and should never be discussed with anyone other than the client and the client's healthcare provider. Therefore, the nurse must tell the unit secretary that the client's condition is not to be discussed. Choices A and B confirm the client's disease, which is inappropriate as it breaches patient confidentiality. Choice D promotes further discussion of the client's condition, which is also inappropriate. The correct response is to firmly state, 'We can't discuss a client's medical condition,' to uphold patient privacy and confidentiality.

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