HESI RN
HESI Pharmacology Quizlet
1. A child is hospitalized with a diagnosis of lead poisoning. The healthcare provider assisting in caring for the child would prepare to assist in administering which of the following medications?
- A. Activated charcoal
- B. Sodium bicarbonate
- C. Syrup of ipecac
- D. Dimercaprol (BAL in Oil)
Correct answer: D
Rationale: Dimercaprol (BAL in Oil) is a chelating agent indicated for lead poisoning. It works by binding to lead and facilitating its removal from the body. Activated charcoal is used for certain types of poisoning by adsorbing toxins, while sodium bicarbonate can be used to treat acidosis. Syrup of ipecac is no longer recommended for poison treatment due to potential risks.
2. A client who is taking hydrochlorothiazide (HydroDIURIL, HCTZ) has been started on triamterene (Dyrenium) as well. The client asks the nurse why both medications are required. The nurse formulates a response, based on the understanding that:
- A. Both are weak potassium-losing diuretics.
- B. The combination of these medications prevents renal toxicity.
- C. Hydrochlorothiazide is less expensive, so using a combination of diuretics is cost-effective.
- D. Triamterene is a potassium-sparing diuretic, whereas hydrochlorothiazide is a potassium-losing diuretic.
Correct answer: D
Rationale: The combination of triamterene and hydrochlorothiazide is used because triamterene is a potassium-sparing diuretic, which helps retain potassium, while hydrochlorothiazide is a potassium-losing diuretic, which promotes potassium excretion. This combination helps balance potassium levels in the body, preventing imbalances that can occur when using potassium-losing diuretics alone.
3. Before administering Methylergonovine (Methergine) to a client with postpartum hemorrhage caused by uterine atony, the nurse checks which of the following as the important client parameter?
- A. Temperature
- B. Lochial flow
- C. Urine output
- D. Blood pressure
Correct answer: D
Rationale: Methylergonovine (Methergine) acts by stimulating uterine contractions and causing vasoconstriction. As vasoconstriction can potentially impact blood pressure, it is crucial to check the client's blood pressure before administering Methylergonovine to monitor for any hypertensive effects.
4. A client has been prescribed furosemide (Lasix), and the nurse is monitoring for adverse effects associated with this medication. Which of the following should the nurse recognize as a potential adverse effect? Select one that doesn't apply.
- A. Nausea
- B. Tinnitus
- C. Hypotension
- D. Hypokalemia
Correct answer: A
Rationale: Furosemide is a loop diuretic that can lead to adverse effects such as tinnitus, hypotension, and hypokalemia. While nausea is a common side effect of many medications, it is not typically associated with furosemide. Therefore, the nurse should recognize nausea as a potential adverse effect that doesn't apply to furosemide.
5. Before initiating a client with tuberculosis on anti-tuberculosis therapy with isoniazid (INH), a nurse ensures that which of the following baseline study has been completed?
- A. Electrolyte levels
- B. Coagulation times
- C. Liver enzyme levels
- D. Serum creatinine level
Correct answer: C
Rationale: Before starting INH therapy for tuberculosis, it is essential to assess liver enzyme levels as INH can cause hepatotoxicity. Monitoring liver enzyme levels before and during the initial 3 months of therapy is crucial to detect any liver damage early and prevent further complications. Choice A, electrolyte levels, are not directly impacted by INH therapy. Choice B, coagulation times, are not routinely monitored before starting INH therapy. Choice D, serum creatinine level, is not specifically required as a baseline study before initiating INH therapy for tuberculosis.
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