What is the generic name of a medication?

In the healthcare team, the nurse plays a primary role in administering medications and evaluating therapeutic responses. While providers such as physicians, nurse practitioners, and physician assistants prescribe medications, it is the nurse who is responsible for safely preparing, administering, and monitoring the effects of medications on the patient.

Rationale for correct answer:

3. Nurse: Nurses are responsible for administering medications, monitoring for therapeutic and adverse effects, and reporting outcomes to the healthcare team. They serve as the final safety checkpoint before a medication reaches the patient.

Rationale for incorrect answer:

1. Physician: Physicians are responsible for diagnosing conditions, prescribing medications, and determining treatment plans, but they do not directly administer medications or assess immediate patient responses after administration.

2. Advanced Practice Registered Nurse (APRN): APRNs have prescriptive authority and provide advanced care, but in most settings, they do not carry out routine medication administration or perform frequent post-administration evaluations.

4. Pharmacist: Pharmacists dispense medications and provide education on drug use and interactions. They do not administer medications or assess the patient's response after administration.

Take-home points:

• Nurses are primarily responsible for administering medications and evaluating patient responses.
• Physicians and APRNs prescribe medications but typically do not administer them.
• Pharmacists dispense and educate but do not assess medication effects on patients.

Glipizide is an oral antidiabetic medication classified as a sulfonylurea, commonly used to manage type 2 diabetes mellitus. Its mechanism of action involves stimulating the pancreatic islet cells (beta cells) to release insulin, thereby lowering blood glucose levels. Nurses must understand this pharmacological action to monitor for hypoglycemia, educate patients on timing of doses with meals, and assess blood glucose levels regularly.

Rationale for correct answer:

2. Glipizide stimulates pancreatic islet cells, specifically beta cells, to release insulin, which lowers blood glucose levels. This describes its pharmacological action and explains how it achieves its therapeutic effect in managing type 2 diabetes.

Rationale for incorrect answer:

1. Morphine sulfate causes constipation because it slows gastrointestinal motility by acting on opioid receptors in the gut. This is a common side effect rather than an explanation of the drug’s therapeutic action.

3. Tetracycline stains developing teeth in children because it binds to calcium in developing bones and teeth, leading to discoloration. This is an adverse effect rather than how the drug works against bacteria.

4. Digoxin toxicity increases with hypokalemia because low potassium levels enhance digoxin’s binding to cardiac tissue, increasing its effects and the risk of dysrhythmias. This reflects a condition that worsens toxicity rather than explaining how the drug works.

Take-home points:

• A medication’s mechanism of action explains how it produces its intended therapeutic effect.
• Glipizide lowers blood glucose by stimulating insulin release from pancreatic beta cells.
• Side effects and toxicity risks are different from the drug’s mechanism of action.