A nurse is assisting in the plan of care for a client who has a suspected myocardial infarction. Which of the following medications should the nurse plan to administer first?

Choice A reason : Morphine is an opioid analgesic used to relieve severe pain and can be administered to patients with myocardial infarction to alleviate chest pain and anxiety. However, it is not the first medication given as it does not address the underlying cause of the myocardial infarction, which is the formation of a blood clot in the coronary arteries.

Choice B reason : Nitroglycerin is a nitrate that helps to dilate blood vessels and improve blood flow. It can be used to relieve chest pain in myocardial infarction, but similar to morphine, it is not the initial medication of choice. The priority is to prevent further blood clotting.

Choice C reason : Administered as soon as possible to inhibit platelet aggregation and reduce clot progression.

Choice D reason : When a myocardial infarction (MI) is suspected, the priority is to address tissue hypoxia and ensure adequate oxygenation to minimize myocardial damage. Administering oxygen helps increase oxygen availability to the ischemic heart tissue, reducing further damage.

Choice A reason : In atrial fibrillation, the heartbeat is known to be irregular and often rapid. This irregularity is due to the disorganized electrical signals in the heart's upper chambers, which cause a fast and chaotic heartbeat. Therefore, when documenting the pulse of a client with atrial fibrillation, the term "irregular" is appropriate.

Choice B reason : "Not palpable" would indicate that the pulse cannot be felt, which is not typically the case with atrial fibrillation. While the pulse may be irregular, it is usually still palpable unless the rate is extremely rapid or associated with other complications.

Choice C reason : "Bounding" refers to a pulse that feels strong and full. This is not characteristic of atrial fibrillation. Instead, the pulse in atrial fibrillation may feel weak and irregular due to the ineffective contraction of the atria.

Choice D reason : "Regular" is not an appropriate term to describe the pulse in a client with atrial fibrillation because the condition is characterized by an irregular heart rhythm. The term would be used for a pulse that has consistent beats at regular intervals, which is not the case in atrial fibrillation.