ATI RN
ATI Pharmacology
1. A client is receiving heparin therapy. Which laboratory value should be monitored by the nurse to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The activated partial thromboplastin time (aPTT) is specifically used to monitor the effectiveness of heparin therapy. It should be maintained at 1.5 to 2 times the normal level. Monitoring aPTT helps ensure that the therapeutic range of heparin is achieved to prevent clot formation while minimizing the risk of bleeding complications. Choice A (PT) is incorrect as it is used to monitor warfarin therapy, not heparin. Choice C (INR) is also incorrect as it is primarily used to monitor warfarin therapy. Choice D (Platelet count) is not directly related to monitoring the effectiveness of heparin therapy.
2. When reviewing a client's health record, a healthcare professional notes that the client is experiencing episodes of hypokalemia. Which of the following medications should be identified as a cause of the client's hypokalemia?
- A. Captopril
- B. Lisinopril
- C. Furosemide
- D. Spironolactone
Correct answer: C
Rationale: Furosemide, a loop diuretic, can lead to hypokalemia by increasing the excretion of potassium in the urine. This potassium loss can result in lower-than-normal levels of potassium in the body, leading to hypokalemia.
3. A client is prescribed Ranitidine. Which of the following laboratory results should be monitored by the nurse?
- A. Complete blood count (CBC).
- B. Serum creatinine.
- C. Serum potassium.
- D. Serum glucose.
Correct answer: A
Rationale: Ranitidine can potentially lead to blood dyscrasias, necessitating the monitoring of the client's CBC. Checking the CBC can help detect any abnormalities in blood cell counts and assess the client's overall hematologic status during Ranitidine therapy.
4. A healthcare provider is reviewing a client's medication history and notes a new prescription for Enalapril. The healthcare provider should monitor the client for which of the following as an adverse effect of this medication?
- A. Bradycardia
- B. Hyperkalemia
- C. Hypoglycemia
- D. Hypocalcemia
Correct answer: B
Rationale: Enalapril, an ACE inhibitor, can cause hyperkalemia as an adverse effect due to decreased aldosterone levels, leading to potassium retention. Monitoring potassium levels is essential to prevent complications associated with hyperkalemia. Bradycardia (Choice A) is not a common adverse effect of Enalapril. Enalapril does not typically affect glucose levels, so hypoglycemia (Choice C) is not a common concern with this medication. Enalapril does not directly impact calcium levels, so hypocalcemia (Choice D) is not a typical adverse effect.
5. A client is being taught about Terbutaline. Which statement by the client indicates understanding of the teaching?
- A. This medication will stop my contractions.
- B. This medication will prevent vaginal bleeding.
- C. This medication will promote blood flow to my baby.
- D. This medication will increase my prostaglandin production.
Correct answer: A
Rationale: The correct answer is A. Terbutaline works by blocking beta2-adrenergic receptors, leading to uterine smooth muscle relaxation and stopping contractions. Therefore, the client demonstrating understanding by recognizing that the medication will stop contractions is the most accurate response. Choices B, C, and D are incorrect because Terbutaline is primarily used to inhibit contractions in preterm labor, not prevent vaginal bleeding, promote blood flow to the baby, or increase prostaglandin production.
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