Correct Answer: A

Rationale: Etoposide is associated with hypotension as a common adverse effect. Therefore, the nurse should closely monitor the client for signs and symptoms of hypotension while receiving this medication, such as dizziness, light-headedness, or low blood pressure readings. Prompt recognition and management of hypotension can help prevent complications and ensure the client's safety during treatment with etoposide.

Correct Answer: B

Rationale: Dopamine, when administered at a low dose, acts on beta1 receptors in the heart, leading to increased myocardial contractility. This positive inotropic effect results in improved cardiac output, which is beneficial for a client with severe heart failure. Dopamine does not typically cause lowered heart rate, decreased conduction through the AV node, or vasoconstriction of renal blood vessels at low doses.

Correct Answer: A

Rationale: The correct instruction for a client prescribed Lisinopril is to avoid salt substitutes. Lisinopril, an ACE inhibitor, can lead to hyperkalemia, hence the importance of avoiding salt substitutes that may contain potassium. Instructing the client to avoid salt substitutes helps prevent potential adverse effects of increased potassium levels.

Correct Answer: C

Rationale: The correct instruction for taking Lovastatin is to take it at bedtime. Cholesterol production in the liver is highest at night, so taking Lovastatin at bedtime aligns with the body's natural rhythm and maximizes its effectiveness.

Correct Answer: D

Rationale: The prescription lacks the frequency of medication administration, which is crucial for ensuring appropriate use. In this case, the frequency of when the medication can be taken needs to be clarified with the provider to provide safe and effective care for the client with Hyperemesis Gravidarum.