After medication teaching on atenolol (Tenormin), which of the following statements by a client with diabetes mellitus demonstrates an understanding of the atenolol?

Correct Answer: B

Rationale: Atenolol (B), a beta blocker, masks tachycardia, an early hypoglycemia sign in diabetics. It doesn’t cause hyperglycemia (A), or affect insulin action (C, D).

Correct Answer: B

Rationale: The right subclavian artery supplies oxygenated blood to the right upper limb (forelimb in some species) and parts of the chest and neck. It does not supply the stomach, kidney, or liver, and arteries carry oxygenated blood (except pulmonary).

Correct Answer: B

Rationale: A shellfish allergy is critical to report before a coronary angiogram because the contrast dye often contains iodine, which can trigger severe allergic reactions in those with shellfish sensitivity. Other conditions are relevant but not immediate safety concerns.

Correct Answer: D

Rationale: Mitral stenosis obstructs flow from the left atrium to ventricle, causing congestion in the pulmonary circulation (lungs), leading to dyspnea and pulmonary edema. Other structures are not directly affected by this backup.

Correct Answer: A

Rationale: Avoiding excessive weight gain during pregnancy reduces long-term cardiovascular risk (e.g., obesity, hypertension). B is secondary prevention, C is for those at risk or post-event, and D treats symptoms, not prevents disease.