Regarding glucocorticoids:

Correct Answer: A

Rationale: Cortisol is indeed the primary human glucocorticoid, a true statement regulating metabolism and stress. Normal cortisol secretion is ~10-20 mg/day, not 100 mg, so that's false. ACTH suppression occurs rapidly (hours), true. Cortisol absence heightens catecholamine sensitivity, true, as in Addison's disease. Leukocyte/macrophage inhibition is a glucocorticoid action, not its absence. Cortisol's role as the major glucocorticoid underpins its therapeutic mimicry (e.g., hydrocortisone) in adrenal insufficiency.

Correct Answer: A

Rationale: Altered nutrition is often the priority nursing diagnosis for clients undergoing chemotherapy because the treatment can cause side effects such as nausea, vomiting, anorexia, and mucositis, leading to malnutrition and weight loss. Proper nutrition is essential for maintaining strength, supporting the immune system, and promoting recovery. While fear, anxiety, and decreased cardiac output are valid concerns, addressing nutritional deficits is critical to the client's overall well-being and ability to tolerate treatment.

Correct Answer: A

Rationale: Cortisol is indeed the primary human glucocorticoid, a true statement regulating metabolism and stress. Normal cortisol secretion is ~10-20 mg/day, not 100 mg, so that's false. ACTH suppression occurs rapidly (hours), true. Cortisol absence heightens catecholamine sensitivity, true, as in Addison's disease. Leukocyte/macrophage inhibition is a glucocorticoid action, not its absence. Cortisol's role as the major glucocorticoid underpins its therapeutic mimicry (e.g., hydrocortisone) in adrenal insufficiency.

Correct Answer: B

Rationale: Before administering Digoxin, the nurse should count the apical pulse for 1 minute. Digoxin is a cardiac medication that primarily works by increasing the force of contractions of the heart muscle. It is important to assess the patient's heart rate to ensure it is within the recommended range before administering Digoxin. This is because Digoxin can cause serious complications such as heart arrhythmias if given when the heart rate is too low. Counting the apical pulse for a full minute provides a more accurate assessment of the heart rate compared to shorter durations.

Correct Answer: A

Rationale: Sleep trouble from exams is situational anxiety-transient, event-driven stress, per psychiatry. Social anxiety involves interaction fears, not events. OCD features obsessions/rituals, not sleep-specific. Performance anxiety ties to tasks, less sleep focus. Situational fits, triggered by circumstance.