ATI Capstone Pharmacology Assessment 1

Correct Answer: A

Rationale: The correct answer is A: Anorexia and weakness. These symptoms are early indicators of potential digitalis toxicity. Anorexia refers to a loss of appetite, which can be a sign of toxicity, and weakness can indicate an issue with digoxin. Choices B, C, and D are incorrect. Hyperactivity and hunger, tachycardia and increased urination, as well as polyphagia and polydipsia are not typically associated with digitalis toxicity.

Correct Answer: B

Rationale: The correct answer is B: Prothrombin time (PT). Warfarin is an anticoagulant medication that works by inhibiting the clotting factors dependent on vitamin K, such as factors II, VII, IX, and X. The prothrombin time (PT) measures the extrinsic pathway and is used to monitor the therapeutic effects of warfarin therapy. Monitoring PT helps assess the time it takes for the blood to clot, ensuring that the anticoagulant effect is within the desired range. Choices A, C, and D are incorrect because hemoglobin (Hgb) measures the amount of hemoglobin in the blood, bleeding time assesses the time it takes for bleeding to stop, and activated partial thromboplastin time (aPTT) is used to monitor heparin therapy, not warfarin therapy.

Correct Answer: A

Rationale: Tachycardia is the correct answer as it is an adverse effect of levothyroxine. Levothyroxine is a medication used to treat hypothyroidism by supplementing the body with thyroid hormone. Tachycardia, or a fast heart rate, can indicate an overdosage or increased sensitivity to levothyroxine. Bradycardia, slow heart rate, weight loss, and increased appetite are not typically associated with adverse effects of levothyroxine. Bradycardia may actually be a symptom of untreated hypothyroidism.

Correct Answer: B

Rationale: Renal failure is a contraindication to opioid therapy due to the risk of drug accumulation and toxicity. Asthma, diabetes mellitus, and obesity are not contraindications to opioid therapy. Asthma is a respiratory condition that can be managed alongside opioids, diabetes mellitus and obesity do not directly contraindicate opioid therapy.

Correct Answer: A

Rationale: The correct answer is A: Anorexia and weakness. These symptoms are early indicators of potential digitalis toxicity. Anorexia refers to a loss of appetite, which can be a sign of toxicity, and weakness can indicate an issue with digoxin. Choices B, C, and D are incorrect. Hyperactivity and hunger, tachycardia and increased urination, as well as polyphagia and polydipsia are not typically associated with digitalis toxicity.