Nursing Elites

1. 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.

2. When suctioning a client, what is the usual amount of time the nurse should spend for each suction pass?

• A. 2 seconds
• B. 10 seconds
• C. 20 seconds
• D. 30 seconds

Correct answer: B

Rationale: Ten seconds is the usual amount of time the nurse should spend for each suction pass. Two seconds is not enough time to effectively remove secretions, while 20 and 30 seconds are too long and could lead to hypoxia and tissue trauma. Therefore, the correct choice is 10 seconds, as it strikes a balance between removing secretions adequately and minimizing the risks associated with prolonged suctioning.

3. For which condition might a client's antidiuretic hormone (ADH) level be increased?

• A. diabetes mellitus
• B. diabetes insipidus
• C. hypothyroidism
• D. hyperthyroidism

Correct answer: B

Rationale: The correct answer is diabetes insipidus. In this condition, the client's ADH level is increased. Diabetes insipidus is characterized by the inability of the kidneys to conserve water due to either inadequate secretion of ADH (central diabetes insipidus) or the kidneys' inability to respond to ADH (nephrogenic diabetes insipidus). Choices A, C, and D are incorrect. In diabetes mellitus, ADH levels are typically normal or elevated in response to high blood sugar levels. Hypothyroidism is not directly related to ADH secretion. In hyperthyroidism, ADH levels are usually normal or decreased.

4. Distribution of a drug to various tissues depends on the amount of cardiac output to each type of tissue. Which tissue would receive the highest amount of cardiac output and thus the highest amount of a drug?

• A. skin
• B. adipose tissue
• C. skeletal muscle
• D. myocardium

Correct answer: D

Rationale: The correct answer is 'myocardium.' Highly perfused tissues include vital organs like the brain, heart, kidneys, adrenal glands, and liver. The myocardium, being heart muscle, receives the highest amount of cardiac output and thus the highest amount of a drug. Choices A, B, and C are incorrect because the skin and adipose tissue are poorly perfused, while skeletal muscle is less perfused compared to vital organs like the myocardium.

5. A syringe pump is a type of electronic infusion pump used to infuse fluids or medications directly from a syringe. This device is commonly used for:

• A. solutions administered in obstetrics.
• B. dilute antibiotics.
• C. large volumes of IV solutions.
• D. the neonatal and pediatric populations.

Correct answer: D

Rationale: The correct answer is 'the neonatal and pediatric populations.' Syringe pumps are commonly used in neonatal and pediatric populations because they allow for precise infusion of small volumes of medications or fluids at controlled rates. This is crucial for ensuring safety and accuracy in these delicate populations. Choice A is incorrect because syringe pumps are not limited to obstetrics; they are used in various healthcare settings. Choices B and C are incorrect because syringe pumps are not typically used for dilute antibiotics or large volumes of IV solutions. Instead, they are preferred for delivering small volumes accurately, making them ideal for neonatal and pediatric care.

Similar Questions