ATI Capstone Pharmacology Assessment 1

Correct Answer: D

Rationale: Intramuscular injections in the ventrogluteal site should be administered at a 90-degree angle. This angle ensures that the medication reaches the muscle tissue effectively. Angles less than 90 degrees can cause subcutaneous injection instead of intramuscular, leading to slower absorption of the medication. Angles greater than 90 degrees risk hitting bone or nerves, causing unnecessary pain or injury. Therefore, the correct angle for administering intramuscular injections in the ventrogluteal site is 90 degrees.

Correct Answer: D

Rationale: The correct answer is D, Lactic acidosis. Lactic acidosis is a rare but serious adverse effect of metformin use. Metformin is not known to cause hyperglycemia or hypoglycemia. Diarrhea is a common gastrointestinal side effect of metformin but is not as serious as lactic acidosis, which requires immediate medical attention.

Correct Answer: D

Rationale: The correct answer is D: Productive cough. Nitroglycerin therapy can lead to adverse effects such as tolerance, orthostatic hypotension, and headache. However, it is not known to cause a productive cough. Tolerance may develop over time, requiring dose adjustments. Orthostatic hypotension can occur due to vasodilation effects, leading to a sudden drop in blood pressure when changing positions. Headache is a common side effect due to vasodilation of cranial blood vessels. Productive cough is not a recognized adverse effect associated with transdermal nitroglycerin therapy.

Correct Answer: A

Rationale: The correct answer is A: Decreased nausea. Ondansetron is classified as an antiemetic medication, which means it is used to relieve nausea and vomiting by blocking serotonin in the chemoreceptor trigger zone. Therefore, the nurse administering ondansetron should expect a therapeutic effect of decreased nausea. Choice B, increased appetite, is incorrect as ondansetron does not affect appetite. Choice C, increased heart rate, is incorrect as ondansetron does not have a direct effect on heart rate. Choice D, relief of headache, is also incorrect as the primary therapeutic effect of ondansetron is to alleviate nausea and vomiting, not headaches.

Correct Answer: B

Rationale: The correct answer is B. The nurse should instruct the client to avoid excessive intake of caffeinated beverages as they can interfere with lithium levels. Option A is incorrect as lithium is usually recommended to be taken on an empty stomach. Option C is not directly related to lithium therapy. Option D is not a typical instruction for lithium therapy.