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A patient is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?
- A. Hemoglobin
- B. Prothrombin time (PT)
- C. Bleeding time
- D. Activated partial thromboplastin time (aPTT)
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
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Which of the following describes the action of an agonist on a receptor.
- A. Destroys the receptor
- B. Competes with a
- C. Activates a receptor
- D. Blocks a receptor Pharmacology Final Study Guide ï‚· Which of the following is an antianginal and nitrate?
Correct Answer: C
Rationale: An agonist is a substance that binds to a receptor and activates it, leading to a biological response. Agonists mimic the action of endogenous ligands that normally bind to the receptor, resulting in activation of downstream signaling pathways. This activation can lead to various physiological effects depending on the specific receptor and pathway involved. In contrast, antagonists block or inhibit the actions of agonists by binding to the receptor without activating it, therefore not producing a response. Therefore, the correct answer is that an agonist activates a receptor.
A client has a prescription for Alendronate. Which of the following instructions should the nurse include?
- A. Take this medication before bed.
- B. Take the medication with food.
- C. Sit upright for at least 30 minutes after taking the medication.
- D. Expect to have frequent headaches while on this medication.
Correct Answer: C
Rationale: The correct instruction for a client prescribed Alendronate is to sit upright for at least 30 minutes after taking the medication. Alendronate can cause esophageal irritation, and maintaining an upright position helps prevent this adverse effect by reducing the risk of reflux of the medication into the esophagus.
Which of the following types of insulin is classified as 'long-acting'?
- A. Lispro (Humalog)
- B. NPH (Humulin N)
- C. Regular insulin (Humulin R)
- D. Glargine (Lantus)
Correct Answer: D
Rationale: Glargine (Lantus) is classified as a long-acting insulin, providing a slow, steady release of insulin over an extended period, making it suitable for basal insulin requirements. It has a duration of action that can last up to 24 hours, helping to maintain more stable blood sugar levels throughout the day.
What are the Therapeutic Effects of Lithium?
- A. Prevents or decreases the incidence of acute manic episodes
- B. Maintenance of blood glucose
- C. Control of hyperglycemia in diabetic patients
- D. Diminished seizure activity
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
What is the pharmacological action of metformin?
- A. Blocks stimulation of beta1 and beta2.
- B. Blocks vasoconstriction and aldosterone.
- C. Acts at many levels in the CNS to produce an anxiolytic effect.
- D. Decreases hepatic glucose production.
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.