A 22 kg patient has an ordered for cefazolin 500 mg IV every 6 hours. The safe dose is 50 mg/kg/day. Is the ordered dose safe for the patient?
The Correct Answer is ["1100 mg\/day"," not safe"]
Given:
- Patient weight = 22 kg
- Ordered dose = 500 mg IV every 6 hours (4 doses/day)
- Safe dose = 50 mg/kg/day
Step 1: Calculate the maximum safe daily dose
Maximum safe dose = 50 mg/kg/day × 22 kg
50 × 22 = 1100 mg/day
Step 2: Calculate the ordered daily dose
Ordered dose = 500 mg per dose × 4 doses/day
500 × 4 = 2000 mg/day
Step 3: Compare the ordered dose with the maximum safe dose
- Maximum safe dose = 1100 mg/day
- Ordered dose = 2000 mg/day
2000 mg/day > 1100 mg/day → not safe
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Thrombocytopenia is incorrect as the primary pathophysiology of leukemia. While thrombocytopenia can occur in leukemia due to bone marrow crowding and decreased platelet production, it is a secondary consequence, not the main mechanism.
B. Unrestricted proliferation of immature white blood cells (WBCs) is correct because leukemia is characterized by uncontrolled proliferation of immature leukocytes (blasts) in the bone marrow. These immature cells accumulate and crowd out normal hematopoietic cells, leading to anemia, thrombocytopenia, and neutropenia, which cause the clinical manifestations of infection, bleeding, and fatigue.
C. Increased blood viscosity is incorrect because this is more characteristic of polycythemia vera, not leukemia. Leukemia generally does not increase blood viscosity unless there is an extremely high white blood cell count in leukostasis.
D. First stage of coagulation process is abnormally stimulated is incorrect because coagulation abnormalities may develop in some forms of leukemia (e.g., acute promyelocytic leukemia with DIC), but this is not the fundamental pathophysiology of leukemia.
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"B"},"C":{"answers":"A"},"D":{"answers":"B"}}
Explanation
- Providing choices when possible: Supports atraumatic care by giving the child a sense of control, which can reduce fear and anxiety during procedures.
- Threatening loss of privileges: Does not support atraumatic care; using threats increases fear and stress, which is counterproductive to minimizing trauma.
- Using a calm, reassuring tone: Supports atraumatic care; helps the child feel safe and understood during a stressful procedure.
- Asking the parent to leave: Does not support atraumatic care; parental presence often reduces anxiety for the child and improves coping.
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