The healthcare provider prescribes dalteparin 200 units/kg SUBQ once a day for a client who weighs 154 lb. 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"]
Rationale:
- Convert the client's weight from pounds (lb) to kilograms (kg).
Weight in kg = 154 lb / 2.2 lb/kg
= 70 kg.
- Calculate the total desired dose in units.
Desired dose (units) = Desired dose (units/kg) × Weight (kg)
= 200 units/kg × 70 kg
= 14000 units.
Available concentration of the medication = 25,000 units/mL.
- Calculate the volume in milliliters (mL) to administer.
Volume (mL) = Desired dose (units) / Available concentration (units/mL)
= 14000 units / 25000 units/mL
= 0.56 mL.
- Round the answer to the nearest tenth.
= 0.6.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"A":{"answers":"A,B"},"B":{"answers":"A"},"C":{"answers":"B"},"D":{"answers":"A,B"},"E":{"answers":"A"}}
Explanation
Rationale:
- Can be caused by aging: Both arthritis and carpal tunnel syndrome are linked to aging. In arthritis, wear and tear on joints over time causes conditions like osteoarthritis. Carpal tunnel syndrome increases with age due to changes in wrist anatomy and nerve compression.
- Inflammatory disease process: Arthritis, especially rheumatoid arthritis, is inflammatory, causing joint pain and damage. Carpal tunnel syndrome, however, is caused by mechanical compression of the median nerve, not by inflammation.
- Finger numbness: Numbness in the fingers is common with carpal tunnel syndrome due to median nerve compression. While arthritis can cause pain and stiffness in joints, it does not typically cause finger numbness unless there's significant nerve involvement.
- Experience difficulty with fine motor movements: Both conditions can impair fine motor skills. Arthritis causes pain and stiffness in joints, while carpal tunnel syndrome affects nerve function, leading to weakness and difficulty performing precise tasks like writing or holding small objects.
- May have a genetic component: Arthritis has a genetic predisposition. Carpal tunnel syndrome does not have a strong genetic link but can be influenced by individual anatomical factors, such as a narrower carpal tunnel.
Correct Answer is A
Explanation
A. "Risk for self-directed violence as evidenced by feelings of hopelessness": The client’s feelings of hopelessness, combined with significant weight loss and loss of interest in activities, suggest possible depression. Hopelessness is a key symptom of depression, which can increase the risk for self-harm or suicide.
B. "Chronic low self-esteem as evidenced by feelings of worthlessness": Feelings of worthlessness are part of the larger picture of the client’s depression. The priority is to address the immediate risk of harm, which takes precedence over chronic low self-esteem.
C. "Anxiety as evidenced by abdominal discomfort secondary to depression": While abdominal discomfort can be a symptom of depression, it is secondary to the more immediate concern of the client’s potential risk for self-directed violence.
D. "Imbalanced nutrition as evidenced by 25 lb (11 kg) weight loss in four months": The significant weight loss is concerning, but it is likely a result of the client’s depression. The focus should first be on addressing the client’s safety, followed by nutrition and weight restoration.
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