The healthcare provider prescribes dalteparin 200 units/kg subcutaneously once day for a client who weighs 154 pounds. The medication is available in 25,000 units/mL vial. How many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["0.6"]
Calculation:
- Convert the client's weight from pounds (lb) to kilograms (kg).
The client's weight is 154 lb.
Client weight (kg) = 154 lb/2.2 lb/kg
= 70 kg.
- Calculate the total dose to be administered (units).
The ordered dose is 200 units/kg.
Total dose (units) = 200 units/kg×70 kg
= 14,000 units.
- Calculate the volume to administer in milliliters (mL).
Available concentration is 25,000 units/mL.
Volume (mL) = Total dose (units)/Available concentration (units/mL)
= 14,000 units/25,000 units/mL
= 0.56 mL.
- Round the answer to the nearest tenth.
= 0.6 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"A":{"answers":"C"},"B":{"answers":"B"},"C":{"answers":"A"},"D":{"answers":"B"},"E":{"answers":"A"},"F":{"answers":"B"}}
Explanation
Rationale:
• Instruct incentive spirometry use every hour: Indicated to promote lung expansion and prevent complications such as pneumonia or atelectasis. Even though the infection is in the leg, maintaining adequate oxygenation and pulmonary function is critical in older adults with multiple comorbidities.
• Use petroleum-based lotion on skin: Contraindicated because petroleum-based products can trap moisture and bacteria, increasing the risk of worsening cellulitis or skin breakdown. Non-occlusive, water-based moisturizers are safer for diabetic or infected skin.
• Administer antibiotics: Indicated as the client has a bacterial infection (cellulitis) with erythema, warmth, swelling, and elevated WBC count. IV cefazolin is prescribed to treat the infection promptly and prevent progression to sepsis.
• Suggest that client ambulate often: Contraindicated because the affected leg is inflamed, painful, and at risk for injury or worsening edema. Early ambulation may exacerbate discomfort and impair healing; activity should be gradual and guided by pain tolerance and clinical stability.
• Encourage consumption of protein and vitamin C: Indicated to support wound healing and immune function. Adequate protein and vitamin C intake are essential for tissue repair and recovery from infection, particularly in older adults with chronic comorbidities.
• Apply thromboembolism deterrent stockings (TED): Indicated to prevent venous thromboembolism, especially since the client has limited mobility due to pain and swelling, advanced age, and comorbid conditions like heart failure and diabetes.
Correct Answer is C
Explanation
A. Absent sounds: Absent bowel sounds are abnormal and may indicate an ileus, obstruction, or decreased intestinal motility, requiring further assessment.
B. Pain: Pain elicited during percussion is not a normal finding and may indicate underlying pathology such as inflammation, infection, or organ enlargement.
C. Musical and drumlike: Tympany, which produces a musical, drumlike sound during percussion, is a normal finding over air-filled structures in the abdomen. It indicates the presence of gas in the stomach and intestines, reflecting normal gastrointestinal function.
D. Tenderness: Tenderness on percussion is abnormal and may suggest inflammation, infection, or other abdominal pathology requiring further evaluation.
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