A drug ending in the suffix (navir) is considered a ______.
- A. Antidepressant
- B. Protease inhibitor
- C. Beta antagonist
- D. H antagonist
Correct Answer: B
Rationale: The correct answer is B: Protease inhibitor. Drugs ending in the suffix (navir) are commonly used to inhibit protease enzymes in viruses, particularly in the treatment of HIV/AIDS. Protease inhibitors disrupt viral replication by preventing the cleavage of viral proteins, thus inhibiting the production of new infectious viral particles.
Choice A, Antidepressant, is incorrect as drugs used to treat depression usually end in (ine) or (pram).
Choice C, Beta antagonist, is incorrect as drugs affecting beta receptors typically end in (olol) or (lol).
Choice D, H antagonist, is incorrect as drugs targeting histamine receptors usually end in (ine) or (idine).
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Which of the following is not a side effect of loop diuretics?
- A. Alkalosis
- B. Nausea
- C. Hypotension
- D. Potassium deficits
Correct Answer: B
Rationale: The correct answer is B: Nausea. Loop diuretics like furosemide work by inhibiting the reabsorption of sodium and water in the loop of Henle in the kidneys. This mechanism can lead to electrolyte imbalances, such as potassium deficits (choice D), and volume depletion, resulting in hypotension (choice C). Loop diuretics can also cause metabolic alkalosis (choice A) due to loss of hydrogen ions. Nausea, however, is not a common side effect of loop diuretics. Therefore, choice B is not a side effect of loop diuretics, making it the correct answer.
A drug ending in the suffix (azole) is considered a ______.
- A. H
- B. ACE inhibitor
- C. Antifungal
- D. Beta agonist
Correct Answer: C
Rationale: The correct answer is C: Antifungal. Drugs ending in the suffix (azole) are commonly used to treat fungal infections. The suffix indicates that the drug belongs to the azole class, which specifically targets fungal pathogens by inhibiting their growth. Therefore, a drug ending in (azole) is classified as an antifungal medication.
Summary of other choices:
A: H - Incorrect. There is no pharmacological relevance to the suffix (azole) in relation to the letter H.
B: ACE inhibitor - Incorrect. Drugs ending in (pril) are commonly ACE inhibitors, not those ending in (azole).
D: Beta agonist - Incorrect. Drugs ending in (ol) or (olol) are typically beta agonists, not those ending in (azole).
Which of the following is the antidote for benzodiazepine toxicity?
- A. Flumazenil
- B. Methylene blue
- C. Deferoxamine
- D. Alkalinize urine
Correct Answer: A
Rationale: The correct answer is A: Flumazenil. Flumazenil is a specific benzodiazepine receptor antagonist that can reverse the effects of benzodiazepine toxicity by competitively inhibiting the binding of benzodiazepines to their receptors. It works by reversing the sedative and respiratory depressant effects of benzodiazepines. Methylene blue (B) is used to treat methemoglobinemia, not benzodiazepine toxicity. Deferoxamine (C) is used for iron toxicity. Alkalinizing urine (D) is used to enhance the excretion of weak acids in the urine, not for benzodiazepine toxicity.
Which of the following drugs is associated with Stevens-Johnson syndrome?
- A. Valproic acid
- B. Quinidine
- C. Isoniazid
- D. Ethosuximide
Correct Answer: D
Rationale: Step 1: Ethosuximide is the correct answer as it is a known trigger for Stevens-Johnson syndrome due to its association with hypersensitivity reactions.
Step 2: Valproic acid can cause liver toxicity but is not typically linked to Stevens-Johnson syndrome.
Step 3: Quinidine is associated with drug-induced lupus but not commonly known to cause Stevens-Johnson syndrome.
Step 4: Isoniazid is linked to drug-induced hepatitis but not typically associated with Stevens-Johnson syndrome.
In summary, Ethosuximide is the correct choice due to its well-documented association with Stevens-Johnson syndrome, while the other options are linked to different adverse effects.
Which of the following conditions is not treated with epinephrine?
- A. Renal disease
- B. Asthma
- C. Hypotension
- D. Glaucoma
Correct Answer: A
Rationale: The correct answer is A: Renal disease. Epinephrine is not used to treat renal disease because it can potentially worsen kidney function. Epinephrine is used in asthma to dilate the airways, in hypotension to increase blood pressure, and in glaucoma to reduce intraocular pressure. Treating renal disease with epinephrine can lead to further complications due to its effect on blood flow and kidney function. Therefore, renal disease is not treated with epinephrine to avoid exacerbating kidney issues.