When the nurse is administering topical nitroglycerin ointment, which technique is correct?

Correct Answer: D

Rationale: The correct technique when administering topical nitroglycerin ointment is to remove the old ointment before applying the new ointment. This is to prevent any potential overdosing of the medication, as nitroglycerin can be rapidly absorbed through the skin. It is important to ensure that the previous application is fully removed before applying a new dose to prevent any accumulation of the medication.

Correct Answer: A

Rationale: Patients with peptic ulcers should stop taking NSAIDs. NSAIDs, which stands for nonsteroidal anti-inflammatory drugs, can worsen peptic ulcers by increasing the risk of gastrointestinal bleeding and ulcer formation. NSAIDs work by inhibiting prostaglandin synthesis, which can lead to a decrease in the protective mucus production in the stomach lining, allowing gastric acid to damage the mucosa and exacerbate peptic ulcers. Therefore, it is crucial for patients with peptic ulcers to avoid NSAIDs to prevent further damage to the gastrointestinal tract.

Correct Answer: D

Rationale: Phenazopyridine is a urinary analgesic commonly used to relieve the burning sensation and pain experienced during urination, typically caused by urinary tract infection or irritation. It works by acting as a local anesthetic on the lining of the urinary tract, providing relief from discomfort. Tolterodine and oxybutynin are used to treat overactive bladder by reducing bladder spasms and urge incontinence, whereas bethanechol is a direct-acting cholinergic agonist primarily used to stimulate bladder contractions in individuals with urinary retention. Thus, for the symptom of burning sensation and pain when urinating, phenazopyridine would be the most likely urinary analgesic to be ordered.

Correct Answer: A

Rationale: Metformin is a commonly prescribed medication for the management of type 2 diabetes. One of the primary mechanisms of action of Metformin is to decrease hepatic glucose production. It works by inhibiting gluconeogenesis, which is the process by which the liver produces glucose. By reducing glucose production in the liver, Metformin helps to lower blood sugar levels and improve insulin sensitivity. This action helps to control hyperglycemia in patients with diabetes. The other options provided do not describe the mechanism of action of Metformin, making them incorrect choices.

Correct Answer: A

Rationale: Levothyroxine belongs to the pharmacologic classification of thyroid preparations. It is a synthetic form of the thyroid hormone thyroxine (T4) and is used to treat hypothyroidism by supplementing or replacing the body's own thyroid hormone. Levothyroxine works to normalize thyroid hormone levels in the body and help regulate metabolism. It is not a metabolic inhibitor, analgesic, or loop diuretic.