ATI RN
ATI Pharmacology Proctored Exam
1. A healthcare provider is caring for four clients who have Peptic Ulcer Disease. The healthcare provider should recognize Misoprostol is contraindicated for which of the following clients?
- A. A client who is pregnant
- B. A client who has osteoarthritis
- C. A client who has a kidney stone
- D. A client who has a urinary tract infection
Correct answer: A
Rationale: Misoprostol is contraindicated in pregnancy due to its potential to induce labor. It is used to prevent ulcers in patients taking nonsteroidal anti-inflammatory drugs and is not indicated for osteoarthritis, kidney stones, or urinary tract infections. Therefore, the correct answer is A. Misoprostol should not be used in pregnant individuals as it can cause uterine contractions and potentially harm the fetus. Choices B, C, and D are incorrect as Misoprostol is not contraindicated for clients with osteoarthritis, kidney stones, or urinary tract infections.
2. Which drug undergoes extensive first-pass hepatic metabolism?
- A. Heparin
- B. Insulin
- C. Propranolol
- D. Nitroglycerin
Correct answer: C
Rationale: Propranolol undergoes extensive first-pass hepatic metabolism in the liver. When administered orally, propranolol is extensively metabolized by the liver before reaching systemic circulation, leading to reduced bioavailability. This process is known as first-pass hepatic metabolism, which significantly affects the drug's effectiveness and necessitates higher oral doses compared to other routes of administration. Heparin (Choice A) is not metabolized by the liver but excreted unchanged by the kidneys. Insulin (Choice B) is a peptide hormone that is not subject to significant first-pass metabolism. Nitroglycerin (Choice D) is primarily metabolized in the blood and tissues, bypassing significant first-pass metabolism in the liver.
3. A client in the post-anesthesia recovery unit received a nondepolarizing neuromuscular blocking agent and is experiencing muscle weakness. The nurse should anticipate a prescription for which of the following medications?
- A. Neostigmine
- B. Naloxone
- C. Dantrolene
- D. Vecuronium
Correct answer: A
Rationale: Neostigmine is a cholinesterase inhibitor commonly used to reverse the effects of nondepolarizing neuromuscular blockers by increasing acetylcholine levels at the neuromuscular junction, thereby helping to restore muscle strength. Naloxone is an opioid antagonist used to reverse opioid effects, not neuromuscular blockade. Dantrolene is a skeletal muscle relaxant used to treat malignant hyperthermia or neuroleptic malignant syndrome, not to reverse neuromuscular blockade. Vecuronium is a nondepolarizing neuromuscular blocking agent, like the one the client received, and is not used to reverse its effects.
4. A healthcare provider is preparing to administer metoprolol to a client. Which of the following findings should the provider identify as a contraindication to receiving this medication?
- A. Bradycardia
- B. Hypertension
- C. Fever
- D. Rash
Correct answer: A
Rationale: Metoprolol, a beta-blocker, is contraindicated in clients with bradycardia as it can further lower the heart rate, potentially leading to more serious complications. Bradycardia is defined as a heart rate below 60 beats per minute, and administering metoprolol in such cases can exacerbate this condition, causing adverse effects on cardiac output. Hypertension, fever, and rash are not contraindications for metoprolol administration.
5. A client has a new prescription for Filgrastim to treat neutropenia. Which of the following statements should the nurse include?
- A. This medication will help increase your white blood cell count.
- B. This medication will help reduce your risk of infection.
- C. This medication will help improve your red blood cell count.
- D. This medication will help increase your platelet count.
Correct answer: A
Rationale: The correct statement the nurse should include is that 'This medication will help increase your white blood cell count.' Filgrastim is a medication used to stimulate the production of white blood cells, specifically neutrophils, to increase the white blood cell count. This increase in white blood cells helps reduce the risk of infections in clients with neutropenia. Choices B, C, and D are incorrect because Filgrastim specifically targets white blood cells, not red blood cells or platelets.
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