ATI RN
ATI Capstone Pharmacology Assessment 1
1. A client receiving epoetin alfa therapy for anemia is being monitored for therapeutic effects. Which of the following laboratory values indicates the medication is effective?
- A. White blood cell count
- B. Hematocrit
- C. Platelet count
- D. Red blood cell count
Correct answer: B
Rationale: The correct answer is B: Hematocrit. An increase in hematocrit levels indicates the effectiveness of epoetin alfa in treating anemia. Hematocrit reflects the percentage of red blood cells in the blood, so an increase in hematocrit signifies an improvement in the patient's red blood cell count and oxygen-carrying capacity. Choices A, C, and D are incorrect because white blood cell count, platelet count, and red blood cell count do not directly reflect the therapeutic effects of epoetin alfa in treating anemia.
2. A client with an artificial heart valve is prescribed warfarin therapy. Which of the following laboratory values should the nurse monitor to assess the therapeutic effect of warfarin?
- A. Hemoglobin (Hgb)
- B. Prothrombin time (PT)
- C. Bleeding time
- D. Activated partial thromboplastin time (aPTT)
Correct answer: B
Rationale: The correct answer is B: Prothrombin time (PT). Warfarin is an anticoagulant medication that works by inhibiting the clotting factors dependent on vitamin K, such as factors II, VII, IX, and X. The prothrombin time (PT) measures the extrinsic pathway and is used to monitor the therapeutic effects of warfarin therapy. Monitoring PT helps assess the time it takes for the blood to clot, ensuring that the anticoagulant effect is within the desired range. Choices A, C, and D are incorrect because hemoglobin (Hgb) measures the amount of hemoglobin in the blood, bleeding time assesses the time it takes for bleeding to stop, and activated partial thromboplastin time (aPTT) is used to monitor heparin therapy, not warfarin therapy.
3. A nurse is caring for a client who is prescribed warfarin. Which of the following laboratory tests should the nurse review to evaluate the therapeutic effect of this medication?
- A. aPTT
- B. INR
- C. Serum glucose
- D. Bilirubin
Correct answer: B
Rationale: The correct answer is B: INR. The International Normalized Ratio (INR) is the most reliable test for evaluating the therapeutic effects of warfarin therapy. INR measures the clotting ability of the blood and helps determine if the dosage of warfarin is within the therapeutic range. Choice A, aPTT, is not typically used to monitor the effects of warfarin. Choice C, Serum glucose, and choice D, Bilirubin, are not relevant to monitoring the therapeutic effect of warfarin.
4. A healthcare professional is caring for a client receiving gentamicin therapy. Which of the following client assessments is a priority for the healthcare professional to monitor for an adverse effect of this medication?
- A. Urinary output
- B. Serum glucose
- C. Respiratory rate
- D. Hearing acuity
Correct answer: D
Rationale: The correct answer is D: Hearing acuity. Gentamicin is known to be ototoxic, which means it can cause damage to the auditory system leading to hearing loss. Monitoring hearing acuity is crucial to detect early signs of hearing impairment. Monitoring urinary output (choice A) is important for assessing kidney function but is not directly related to gentamicin's adverse effects. Monitoring serum glucose (choice B) and respiratory rate (choice C) are not specifically associated with gentamicin therapy.
5. A nurse is caring for a client prescribed methotrexate for rheumatoid arthritis. Which of the following client history findings requires the nurse to question the administration of this medication?
- A. Osteoporosis
- B. Hypertension
- C. Peptic ulcer disease
- D. Immunosuppression
Correct answer: C
Rationale: The correct answer is C: Peptic ulcer disease. Methotrexate can exacerbate peptic ulcer disease, leading to serious complications. This finding warrants questioning the administration of methotrexate to prevent harm to the client. Choices A, B, and D are not directly contraindicated with methotrexate use. Osteoporosis, hypertension, and immunosuppression are not typically reasons to question the administration of methotrexate for rheumatoid arthritis.
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