Large arteries in the cranial cavity are called sinuses.

Correct Answer: B

Rationale: Sinuses in the cranial cavity refer to venous sinuses, not arteries; large arteries are not called sinuses.

Correct Answer: B

Rationale: The renal artery supplies the kidney; the suprarenal artery supplies the adrenal glands.

Correct Answer: D

Rationale: The normal conduction pathway is SA node, AV node, bundle of His, and Purkinje fibers.

Correct Answer: A

Rationale: The radial artery, located on the thumb side of the wrist, is the most commonly used site for checking the pulse in the wrist due to its accessibility and prominence.

Correct Answer: C

Rationale: Nausea is an indication of digoxin toxicity and should be reported so that the provider can assess the patient for toxicity and adjust the digoxin dose, if necessary. The patient will need to include potassium-containing foods in the diet to avoid hypokalemia. Patients should be taught to check their pulse daily before taking the digoxin and if the pulse is less than 60 beats/min, to call their provider before taking the digoxin. Diuretics should be taken early in the day to avoid sleep disruption.