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Biology-Related Homework Help Pharmacology Topic started by: Chellemonia on Jan 24, 2018



Title: A patient who is HIV-positive begins therapy with the fixed-dose combination nucleoside reverse ...
Post by: Chellemonia on Jan 24, 2018
A patient who is HIV-positive begins therapy with the fixed-dose combination nucleoside reverse transcriptase inhibitor (NRTI) Combivir (lamivudine/zidovudine) twice daily.
 
  The patient is in the clinic for follow-up 1 week after initiation of therapy and reports having nausea. The patient's creatinine clearance is 40 mL/minute. Based on these findings, the nurse will perform which action?
  a. Instruct the patient to take the medication 60 minutes prior to meals.
  b. Notify the provider to discuss single-dose NRTI products.
  c. Request an order for once-daily dosing of this medication.
  d. Suggest that the patient increase fluid intake.


Title: A patient who is HIV-positive begins therapy with the fixed-dose combination nucleoside reverse ...
Post by: stevie0912 on Jan 24, 2018
ANS: B
Patients should have dosage adjustments of NRTIs if creatinine clearance is less than 50 mL/min. The patient will need single-dose medications so that adjustments can be made. Taking the medication prior to meals improves absorption of didanosine but does not alter the side effect of nausea for Combivir, which should subside in the next week or so. This combination product is not given once daily. Increasing fluid intake will not affect this patient's symptoms.