ATI Pharmacology Proctored Exam

Correct Answer: A

Rationale: Misoprostol is contraindicated in pregnancy due to its potential to induce labor. It is used to prevent ulcers in patients taking nonsteroidal anti-inflammatory drugs and is not indicated for osteoarthritis, kidney stones, or urinary tract infections. Therefore, the correct answer is A. Misoprostol should not be used in pregnant individuals as it can cause uterine contractions and potentially harm the fetus. Choices B, C, and D are incorrect as Misoprostol is not contraindicated for clients with osteoarthritis, kidney stones, or urinary tract infections.

Correct Answer: C

Rationale: Muscle rigidity and a sudden rise in temperature are indicative of malignant hyperthermia, a potential complication of succinylcholine. Dantrolene is the drug of choice to treat malignant hyperthermia as it acts on skeletal muscles to reduce metabolic activity and counteract the symptoms. Neostigmine (Choice A) is used to reverse the effects of non-depolarizing neuromuscular blocking agents, not for malignant hyperthermia. Naloxone (Choice B) is an opioid antagonist used for opioid overdose. Vecuronium (Choice D) is a non-depolarizing neuromuscular blocking agent and is not the appropriate medication for malignant hyperthermia.

Correct Answer: A

Rationale: Tamoxifen is contraindicated in clients with a history of thromboembolic events, such as deep-vein thrombosis, due to the increased risk of blood clots. The estrogenic effects of tamoxifen can further increase the risk of thromboembolic events, making it unsafe for individuals with a history of deep-vein thrombosis. Choice B (migraine headaches), Choice C (hypertension), and Choice D (anemia) are not contraindications for tamoxifen therapy. Migraine headaches, hypertension, and anemia do not pose the same risk of adverse effects related to blood clot formation as deep-vein thrombosis does.

Correct Answer: A

Rationale: To calculate the dosage per administration: Convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the nurse should administer 4 mL of amoxicillin suspension per dose. Choice B, 5 mL, is incorrect because the calculation shows that 4 mL is the correct dose. Choices C and D are also incorrect as they are not in line with the calculated dosage based on the weight of the child and the concentration of the medication.

Correct Answer: A

Rationale: The correct answer is urinary retention. Opioid agonists like morphine can suppress the sensation of a full bladder, leading to urinary retention. Monitoring for this complication is crucial to prevent bladder distention and related issues. Choices B, C, and D are incorrect. Tachypnea (increased respiratory rate), hypertension (high blood pressure), and irritating cough are not typically associated with opioid agonist administration for pain management.