A patient who is receiving dobutamine for the treatment of acute decompensated heart failure (ADHF) has the following nursing interventions included in the plan of care. Which action will be most appropriate for the registered nurse (RN) to delegate to an experienced licensed practical/vocational nurse (LPN/LVN)?

Correct Answer: C

Rationale: An experienced LPN/LVN would be able to monitor BP and heart rate and would know to report significant changes to the RN. Teaching patients, making adjustments to the drip rate for vasoactive drugs, and inserting a new peripheral IV catheter require RN level education and scope of practice.

Correct Answer: A

Rationale: Acetylcholine hyperpolarizes the SA node, slowing heart rate via increased potassium permeability.

Correct Answer: D

Rationale: Vasopressin causes vasoconstriction, not dilation, unlike the others which dilate skin arterioles.

Correct Answer: A

Rationale: The action potential reaches the epicardial base of the left ventricle in about 0.22 seconds via Purkinje fibers.

Correct Answer: D

Rationale: HDL serves as a reservoir, donating apolipoproteins to other lipoproteins.