The patient is started on subcutaneous heparin injections 7500 units q12h for deep vein thrombosis prophylaxis at 0900. When does the nurse plan to obtain the activated partial thromboplastin time (aPTT) to determine effectiveness of therapy?  

The nurse is assigned to care for a 31-year-old male with a past medical history significant for long-standing diabetes mellitus and hypertension. Current medications are metformin, furosemide, and captopril. Laboratory tests reveal serum potassium of 3.2 mEq/L, so the patient is started on spironolactone. The nurse provides education about which side effect of therapy?

The nurse is taking care of a patient who is prescribed chloramphenicol. After three days, the patient develops fatigue and dyspnea on exertion. Physical assessment reveals tachycardia, pallor and multiple petechiae on the trunk and extremities. The nurse anticipates which laboratory result(s)?