When providing education to a patient on the use of a benzodiazepine medication, the nurse will include which information?

Choice A rationale

Ensuring the correct medication is given to the right patient is the primary safety priority in medication administration. This fundamental step, part of the "rights" of medication administration, prevents life-threatening errors, such as administering a medication the patient is allergic to or one that is contraindicated for their medical condition.

Choice B rationale

Checking the expiration date is a crucial step to ensure medication efficacy and safety, but it is secondary to patient and medication identification. An expired drug may be ineffective or harmful, but giving the wrong drug to the wrong patient poses an immediate and direct threat to life.

Choice C rationale

Confirming a patient's insurance coverage is an administrative task that has no bearing on the immediate safety or medical necessity of administering the medication. This is a non-clinical function that should not delay or interfere with timely and safe patient care.

Choice D rationale

Documentation of medication administration should always occur after the medication has been given to the patient. Documenting beforehand is an unsafe practice as it can lead to charting errors, such as documenting a medication that was never actually administered, which can endanger the patient.

Choice A rationale

Beta-blockers, such as propranolol, are not known to cause vasodilation of the coronary arteries. These medications block the effects of epinephrine, which results in a reduction in heart rate and blood pressure, but they do not directly dilate the coronary arteries. The main effect is on cardiac workload and oxygen demand.

Choice B rationale

Beta-blockers primarily function by antagonizing the effects of catecholamines on beta-adrenergic receptors, leading to a decrease in the force of cardiac contraction (negative inotropic effect). This reduction in contractility lowers the heart's workload and oxygen demand, which is beneficial in post-MI patients, not by increasing it.

Choice C rationale

Beta-blockers produce a negative chronotropic effect by blocking beta-1 receptors in the sinoatrial (SA) node. This action slows the heart rate, allowing for increased diastolic filling time and improved coronary artery perfusion. This decreased heart rate also reduces myocardial oxygen consumption, which is crucial after a myocardial infarction.

Choice D rationale

By reducing heart rate, contractility, and blood pressure, beta-blockers significantly decrease the oxygen demand of the heart muscle. This is their primary therapeutic benefit following an MI. A lower myocardial oxygen demand helps to prevent further ischemia and limits the extent of myocardial damage.