ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client is prescribed an IM dose of penicillin. She reports developing a rash after taking penicillin 3 years ago. What action should the healthcare professional take?
- A. Administer the prescribed dose.
- B. Withhold the medication.
- C. Ask the provider to change the prescription to an oral form.
- D. Administer an oral antihistamine at the same time.
Correct answer: B
Rationale: The healthcare professional should withhold the medication and notify the provider of the client's previous reaction to penicillin. It is crucial to report any past allergic reactions to medications, as this information guides the provider in prescribing a safe alternative. Administering the prescribed dose without considering the client's history of developing a rash can lead to potentially severe adverse reactions. Changing the prescription to an oral form or administering an oral antihistamine does not address the risk of an allergic reaction to penicillin in this case.
2. 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: The correct answer is Glargine (Lantus). Glargine is classified as a long-acting insulin due to its slow, steady release 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 stable blood sugar levels throughout the day. Lispro (Humalog) is a rapid-acting insulin, NPH (Humulin N) is an intermediate-acting insulin, and Regular insulin (Humulin R) is a short-acting insulin, so they are not classified as long-acting insulins.
3. While providing an Angiotensin-converting enzyme (ACE) inhibitor, the patient asks what the action of the drug is. As a healthcare provider, you explain that the action of an ACE inhibitor is:
- A. To lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II
- B. To inhibit reabsorption of sodium back into the body, ultimately increasing urine output and lowering blood pressure
- C. To decrease heart rate and blood pressure by competing with Beta1 and Beta2 receptors in the heart and lungs
- D. To lower blood glucose by stimulating the release of insulin
Correct answer: A
Rationale: ACE inhibitors lower blood pressure by blocking the conversion of angiotensin I to vasoconstrictor angiotensin II. Angiotensin II is a potent vasoconstrictor, and by inhibiting its formation, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload on the heart. Choice B is incorrect as it describes the mechanism of action of diuretics, not ACE inhibitors. Choice C is incorrect as it refers to the action of beta-blockers, not ACE inhibitors. Choice D is incorrect as it describes the mechanism of action of antidiabetic medications, not ACE inhibitors.
4. Which of the following is the antidote for benzodiazepine toxicity?
- A. Flumazenil
- B. Methylene blue
- C. Deferoxamine
- D. Alkalinize urine
Correct answer: A
Rationale: Flumazenil is the specific antidote for benzodiazepine toxicity. It acts as a competitive antagonist at the benzodiazepine binding site on the GABA receptor, reversing the sedative effects of benzodiazepines. Administration of flumazenil is indicated in cases of benzodiazepine overdose or toxicity to rapidly reverse the central nervous system depression caused by these drugs. It is important to note that flumazenil should be used cautiously in patients with a history of seizures or those who are physically dependent on benzodiazepines, as it can precipitate withdrawal symptoms or seizures.
5. A client has a new prescription for Digoxin for heart failure. Which of the following adverse effects should the client be instructed to monitor for and report to the provider?
- A. Dry cough
- B. Pedal edema
- C. Bruising
- D. Yellow-tinged vision
Correct answer: D
Rationale: Yellow-tinged vision is a potential adverse effect of digoxin, which may indicate toxicity. It is crucial for the client to report this symptom promptly to the healthcare provider to prevent any further complications. Dry cough is not typically associated with digoxin use. Pedal edema is a common symptom of heart failure, which digoxin is prescribed to manage. Bruising is not a common adverse effect of digoxin.
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