Correct Answer: A

Rationale: Lanugo (fine, soft hair) on the face and body is a common finding in anorexia nervosa due to the body's attempt to conserve heat in response to severe weight loss and malnutrition.
Choice B is incorrect because anorexia nervosa typically causes hypothermia due to low body fat and reduced metabolic rate, not hyperthermia.
Choice C is incorrect because bradycardia, not tachycardia, is common due to decreased metabolic demand and electrolyte imbalances.
Choice D is incorrect because hypotension, not hypertension, is typical due to dehydration and reduced cardiac output.

Correct Answer: A

Rationale: Taking combined oral contraceptives at the same time each day helps maintain consistent hormone levels and maximizes effectiveness in preventing pregnancy.
Choice B is wrong because a backup method of contraception is recommended for the first 7 days only if the pills are started after the first day of the menstrual cycle; if started on the first day, no backup is needed.
Choice C is wrong because headaches are a common side effect, but stopping the pills abruptly is not advised; the client should consult the provider if headaches are severe or persistent.
Choice D is wrong because taking an extra pill after missing a dose can increase the risk of side effects; the correct action depends on the timing and number of missed pills, typically involving taking the missed pill as soon as remembered and using a backup method.

Correct Answer: C

Rationale:
Choice A is wrong because checking a STAT cardiac troponin is not the first priority. Cardiac troponin is a biomarker that indicates myocardial injury, but it may not rise until several hours after the onset of chest pain.
Therefore, it is not useful for immediate diagnosis or treatment of acute coronary syndrome.
Choice B is wrong because requesting a prescription for a beta-blocker is not the first priority. Beta-blockers are medications that can lower blood pressure and heart rate, and reduce the oxygen demand of the heart. They can prevent or reduce the recurrence of chest pain and complications of acute coronary syndrome, but they are not indicated for immediate relief of chest pain. Nitroglycerin is a vasodilator that can relieve chest pain caused by myocardial ischemia. The nurse should administer it as soon as possible to improve blood flow to the heart and reduce the risk of myocardial infarction. The nurse should also monitor the client's blood pressure and heart rate after giving nitroglycerin, as it can cause hypotension and reflex tachycardia.
Choice D is wrong because administering oxygen is not the first priority. Oxygen therapy can increase the oxygen supply to the heart and reduce ischemia, but it is not necessary for all clients with chest pain. Oxygen therapy should be based on the client's oxygen saturation level and clinical condition. If the client's oxygen saturation is normal or high, oxygen therapy may not be beneficial and may even be harmful.

Correct Answer: C

Rationale: Administering insulin glargine at bedtime aligns with its long-acting profile, providing consistent basal insulin coverage over 24 hours for diabetes management.
Choice A is incorrect because rotating injection sites (e.g., abdomen, thighs) prevents lipodystrophy; using the same site each time is not recommended.
Choice B is incorrect because insulin glargine should not be shaken, as it is a clear solution, and shaking can denature the insulin.
Choice D is incorrect because insulin glargine is clear, not cloudy; cloudy insulin (e.g., NPH) requires mixing.

Correct Answer: A

Rationale: Reporting drowsiness is important with gabapentin due to sedation. Antacids reduce absorption, weight gain is more common, and stopping abruptly risks withdrawal.