Nokea
Why is diclofenac combined with misoprostol?
- A. They are synergistic
- B. They are additive
- C. To reduce hepatic side effects
- D. To prevent diclofenac-related gastric ulcers
Correct Answer: D
Rationale: Misoprostol protects against diclofenac-induced gastric ulcers.
You may also like to solve these questions
Half-lives of hydrophilic beta-blockers tend to be longer than their lipophilic counterparts.
- A. TRUE
- B. FALSE
Correct Answer: A
Rationale: Hydrophilic beta-blockers (e.g., atenolol) have longer half-lives due to renal elimination, unlike lipophilic ones (e.g., propranolol) metabolized by the liver.
An Investigational New Drug is filed with the U.S. Food and Drug Administration:
- A. When the manufacturer has completed phase III trials
- B. When a new drug is discovered
- C. Prior to animal testing of any new drug entity
- D. Prior to human testing of any new drug entity
Correct Answer: D
Rationale: An IND is filed before human testing , after preclinical (animal) studies, to ensure safety before clinical trials begin.
A 66-year-old man is admitted to the hospital with confusion, nausea, and blurred vision. He is currently on digoxin for the treatment of heart failure. On physical exam, his heart rate is 120 bpm. Further evaluation reveals a digoxin level of 5.3 ng/mL (normal range: 0.5-2 ng/mL). The doctor believes his symptoms are due to digoxin toxicity. Which parameter is used to indicate the ability of digoxin to produce the desired effect relative to a toxic effect?
- A. Bioavailability
- B. Efficacy
- C. Intrinsic activity
- D. Therapeutic index
Correct Answer: D
Rationale: Therapeutic index (TI) measures the relative safety of a drug by comparing the dose required for a therapeutic effect to the dose that produces toxicity. In this case, digoxin toxicity is indicated by the elevated level, and TI is the relevant parameter.
When prescribing an opioid analgesic such as acetaminophen and codeine (Tylenol #3), instructions to the patient should include:
- A. The medication may cause sedation and they should not drive.
- B. Constipation is a common side effect and they should increase fluids and fiber.
- C. Patients should not take any other acetaminophen-containing medications at the same time.
- D. All of the above
Correct Answer: D
Rationale: All are critical: sedation, constipation, and acetaminophen overdose risks.
A nurse is teaching a client who has a new prescription for Escitalopram for treatment of generalized Anxiety disorder. Which of the following statements by the client indicates understanding of the teaching?
- A. I should take the medication on an empty stomach.
- B. I will follow a low-sodium diet while making this medication.
- C. I should not crush this medication before swallowing.
- D. I should not crush this medication before swallowing.
Correct Answer: C
Rationale: Escitalopram should not be crushed to maintain its effectiveness; food and sodium restrictions are not required.