ATI Pharmacology Proctored Exam

Correct Answer: A

Rationale: The correct answer is A. Terbutaline works by blocking beta2-adrenergic receptors, leading to uterine smooth muscle relaxation and stopping contractions. It is commonly used to delay preterm labor. Choice B is incorrect because Terbutaline is not used to prevent vaginal bleeding. Choice C is incorrect because Terbutaline's primary action is not related to promoting blood flow to the baby. Choice D is incorrect because Terbutaline does not increase prostaglandin production; instead, it works by blocking beta2-adrenergic receptors.

Correct Answer: A

Rationale: The nurse should instruct the client to take folic acid when receiving treatment with methotrexate to reduce the risk of methotrexate toxicity. Methotrexate acts as a folic acid antagonist, leading to folic acid deficiency, which can be counteracted by supplementing with folic acid. Vitamin D, calcium, and iron are not specifically recommended to counteract methotrexate effects and do not play a significant role in mitigating methotrexate toxicity.

Correct Answer: C

Rationale: The correct answer is 'C: Bradycardia.' Atenolol, a beta-blocker, commonly causes bradycardia as an adverse effect. It works by slowing down the heart rate, which can lead to a decreased heart rate known as bradycardia. Monitoring for signs of bradycardia is essential to prevent any potential complications while on atenolol. Choices A, B, and D are incorrect because atenolol is not known to cause tachycardia, hypoglycemia, or hypertension as common adverse effects.

Correct Answer: A

Rationale: The correct instruction for a client prescribed Digoxin for heart failure is to contact the provider if the heart rate is less than 60/min. Digoxin can affect heart rate, and a heart rate below 60/min may indicate toxicity, requiring prompt medical attention. Checking the pulse rate accurately and seeking medical advice are essential components of safe medication management. Choices B, C, and D are incorrect. Choice B is related to checking the pulse rate but does not address the critical action of contacting the provider if it is below 60/min. Increasing intake of sodium (Choice C) is inappropriate as high sodium levels can worsen heart failure. Taking Digoxin with food if nausea occurs (Choice D) does not address a critical aspect of Digoxin administration related to heart rate monitoring.

Correct Answer: A

Rationale: Corrected Rationale: Hydrochlorothiazide, a diuretic, can lead to electrolyte imbalances, particularly hyponatremia (low sodium levels). The nurse should closely monitor the client's sodium levels due to the potential adverse effect of Hydrochlorothiazide. Incorrect Rationales: - Hyperkalemia (Choice B) is less likely to be caused by Hydrochlorothiazide; in fact, it can lead to hypokalemia. - Hypercalcemia (Choice C) is not a common adverse effect of Hydrochlorothiazide. - Hypoglycemia (Choice D) is not directly associated with Hydrochlorothiazide use.