A 54-year-old man has a myocardial infarction, resulting in left-sided heart failure.
The nurse caring for the man is most concerned that he will develop edema in what area of the body.

Choice A rationale

Administering the medication even if the name of the drug can be clearly read is risky because the rest of the label might contain essential information like dosage, expiration date, and other critical instructions. Administering a medication without complete labeling increases the risk of medication errors.

Choice B rationale

Discarding the entire bottle and contents and obtaining a new bottle is the safest option. It ensures that the nurse is using a medication with a fully intact label, which includes all necessary information to safely administer the medication, such as dosage, route, and expiration date.

Choice C rationale

Asking another nurse to verify the contents of the bottle is not sufficient because the torn and soiled label still lacks complete information. Without all details, there's a risk of administering the wrong dosage or an expired medication.

Choice D rationale

Finding the drug information and making a new label for the bottle is not appropriate because it does not guarantee the accuracy of the dosage or other critical details that were on the original label. It's better to use a completely labeled and verified medication bottle.

Choice A rationale

This choice is incorrect. Cholinergic agonists primarily affect acetylcholine receptors, not GABA receptors. GABA receptors are involved in the inhibitory neurotransmission in the central nervous system and are the target of different drug classes, such as benzodiazepines and barbiturates, which are not related to cholinergic agonists.

Choice B rationale

This choice is incorrect. Cholinergic agonists do not decrease norepinephrine activity. Norepinephrine is a neurotransmitter involved in the sympathetic nervous system response, which is different from the cholinergic system. Drugs that decrease norepinephrine activity would have a different mechanism of action, such as adrenergic antagonists.

Choice C rationale

This choice is incorrect. The primary action of cholinergic agonists is not to increase dopamine activity. Dopamine is another neurotransmitter involved in various brain functions, including reward and motor control. Cholinergic agonists specifically target acetylcholine receptors, enhancing their activity, which is not related to dopamine receptors.

Choice D rationale

This choice is correct. Cholinergic agonists increase the activity of acetylcholine receptor sites throughout the body. These drugs mimic the action of acetylcholine, a neurotransmitter that plays a key role in the parasympathetic nervous system, which regulates functions such as muscle contraction, gland secretion, and heart rate. Enhancing acetylcholine activity helps in conditions like myasthenia gravis and certain types of glaucoma.