HESI RN
Pharmacology HESI Quizlet
1. Which laboratory test should the nurse monitor to determine the effectiveness of heparin therapy for a client with deep vein thrombosis?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Activated partial thromboplastin time (aPTT)
- D. Hemoglobin and hematocrit
Correct answer: C
Rationale: The activated partial thromboplastin time (aPTT) is the specific laboratory test used to monitor the effectiveness of heparin therapy in patients with deep vein thrombosis. It measures the time it takes for blood to clot and is crucial in assessing the therapeutic range of heparin. Platelet count, prothrombin time (PT), and hemoglobin and hematocrit levels are important parameters in assessing coagulation and blood status but do not directly indicate the effectiveness of heparin therapy.
2. Rifabutin (Mycobutin) is prescribed for a client with active Mycobacterium avium complex (MAC) disease and tuberculosis. The nurse monitors for which side effects of the medication? Select one that doesn't apply.
- A. Signs of hepatitis
- B. Flu-like syndrome
- C. Low neutrophil count
- D. Vitamin B6 deficiency
Correct answer: D
Rationale: Rifabutin is known to cause side effects such as hepatitis, flu-like syndrome, low neutrophil count, and ocular pain or blurred vision. Vitamin B6 deficiency is not associated with rifabutin but is a side effect of isoniazid (INH). Therefore, the nurse should not monitor for Vitamin B6 deficiency when administering rifabutin.
3. Megestrol acetate (Megace), an antineoplastic medication, is prescribed for a client with metastatic endometrial carcinoma. The nurse reviews the client's history and contacts the registered nurse if which diagnosis is documented in the client's history?
- A. Gout
- B. Asthma
- C. Thrombophlebitis
- D. Myocardial infarction
Correct answer: C
Rationale: Megestrol acetate can increase the risk of thromboembolic events. Clients with a history of thrombophlebitis should not receive this medication due to the increased risk of thromboembolic events. Therefore, the nurse should contact the registered nurse if thrombophlebitis is documented in the client's history to ensure appropriate medication management.
4. A client is being monitored while receiving bethanechol chloride (Urecholine) for urinary retention. Which of the following indicates a therapeutic effect of this medication?
- A. Increased heart rate
- B. Increased peristalsis
- C. Passage of flatus
- D. Urinary output of 50 mL per hour
Correct answer: D
Rationale: Bethanechol chloride (Urecholine) is administered to stimulate the bladder and treat urinary retention. The therapeutic effect is indicated by an increased urinary output, as it demonstrates the medication's ability to prompt the bladder to empty. Increased heart rate and passage of flatus are unrelated to the therapeutic effects of bethanechol. Although bethanechol can increase peristalsis, the primary therapeutic goal is to address urinary retention.
5. A client with angina pectoris is experiencing chest pain that radiates down the left arm. The nurse administers a sublingual nitroglycerin tablet to the client. The client's pain is unrelieved, and the nurse determines that the client needs another nitroglycerin tablet. Which of the following vital signs is most important for the nurse to check before administering the medication?
- A. Temperature
- B. Respirations
- C. Blood pressure
- D. Radial pulse rate
Correct answer: C
Rationale: The correct answer is checking the client's blood pressure (C) before administering another nitroglycerin tablet. Nitroglycerin can cause hypotension, and monitoring blood pressure is crucial to prevent a sudden drop in blood pressure, especially when giving another dose of nitroglycerin.
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