HESI RN
HESI Pharmacology Quizlet
1. A client is being educated about the use of levodopa-carbidopa (Sinemet) for Parkinson's disease. Which statement by the client indicates a need for further teaching?
- A. I should avoid taking the medication with a high-protein meal.
- B. I may experience dizziness when getting up quickly.
- C. I might notice a darkening of my urine.
- D. I should report any uncontrolled movements to my healthcare provider.
Correct answer: A
Rationale: The correct answer is A. Levodopa-carbidopa (Sinemet) should not be taken with a high-protein meal as protein can interfere with the absorption of the medication. It is recommended to take it on an empty stomach or with a light meal. Choices B, C, and D are accurate statements regarding potential side effects and actions to take while on levodopa-carbidopa therapy, indicating a good understanding by the client.
2. Tamoxifen is prescribed for the client with metastatic breast carcinoma. The nurse understands that the primary action of this medication is to:
- A. Increase DNA and RNA synthesis.
- B. Promote the biosynthesis of nucleic acids.
- C. Increase estrogen concentration and estrogen response.
- D. Compete with estradiol for binding to estrogen in tissues containing high concentrations of receptors.
Correct answer: D
Rationale: The primary action of tamoxifen, an antineoplastic medication used in metastatic breast carcinoma, is to compete with estradiol for binding to estrogen receptors in tissues with high receptor concentrations. By doing so, tamoxifen reduces DNA synthesis and estrogen response, leading to its therapeutic effect in inhibiting the growth of estrogen-sensitive breast cancer cells.
3. A histamine (H2)-receptor antagonist will be prescribed for a client. The nurse understands that which medications are H2-receptor antagonists? Select one that doesn't apply.
- A. Nizatidine (Axid)
- B. Ranitidine (Zantac)
- C. Famotidine (Pepcid)
- D. Ibuprofen (Motrin)
Correct answer: D
Rationale: H2-receptor antagonists like Nizatidine, Ranitidine, and Famotidine are used to suppress gastric acid secretion, relieve heartburn symptoms, and prevent complications of peptic ulcer disease. Ibuprofen, on the other hand, is a nonsteroidal anti-inflammatory drug (NSAID) commonly used for pain relief and inflammation, but it is not an H2-receptor antagonist. It is essential to differentiate between these medication classes to ensure appropriate treatment for gastrointestinal conditions.
4. A community health nurse visits a client at home. Prednisone 10 mg orally daily has been prescribed for the client. The nurse reinforces teaching for the client about the medication. Which statement, if made by the client, indicates that further teaching is necessary?
- A. I can take aspirin or my antihistamine if I need it.
- B. I need to take the medication every day at the same time.
- C. I need to avoid coffee, tea, cola, and chocolate in my diet.
- D. If I gain more than 5 pounds a week, I will call my doctor.
Correct answer: A
Rationale: Aspirin and other over-the-counter medications should not be taken without consulting the health care provider (HCP). The client needs to take the medication at the same time every day and avoid caffeine-containing foods and fluids to prevent steroid-ulcer development.
5. Heparin sodium is prescribed for the client. The nurse expects that the healthcare provider will prescribe which of the following to monitor for a therapeutic effect of the medication?
- A. Hematocrit level
- B. Hemoglobin level
- C. Prothrombin time (PT)
- D. Activated partial thromboplastin time (aPTT)
Correct answer: D
Rationale: The correct answer is D, activated partial thromboplastin time (aPTT). Heparin affects the intrinsic pathway of coagulation. Monitoring aPTT helps ensure that heparin sodium is within the therapeutic range to prevent clot formation. Hematocrit and hemoglobin levels assess red blood cell concentrations and are not specific to monitoring heparin therapy. Prothrombin time (PT) is used to monitor the therapeutic effect of warfarin sodium, which affects the extrinsic pathway of coagulation, not heparin.
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