Heparin is supplied in bags that have 25,000 units / 250 mL. What is the concentration of Heparin?
1 unit per 1mL
10 units per 1 mL
100 units per 1 mL
1000 units per 1 mL
The Correct Answer is C
A. If the concentration were 1 unit/mL, then in 250 mL there would only be 250 units total, which is much lower than the provided 25,000 units.
B. If the concentration were 10 units/mL, then in 250 mL there would be 2,500 units total, which is also much lower than the provided 25,000 units.
C. If the concentration were 100 units/mL, then in 250 mL there would be 25,000 units total, which matches the provided information. However, while this seems plausible, it is not the answer we calculated.
D. If the concentration were 1,000 units/mL, then in 250 mL there would be 250,000 units total, which is significantly higher than the 25,000 units provided.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["14"]
Explanation
154 lbs ÷ 2.2 lbs/kg = 70 kg
20 units/kg * 70 kg = 1400 units
1400 units ÷ 25,000 units/250 mL = 14 mL
Therefore, the nurse will administer 14 mL of Heparin.
Correct Answer is A
Explanation
A. Petechiae (small red or purple spots caused by bleeding under the skin) and epistaxis (nosebleeds) result from thrombocytopenia, which is a low platelet count often seen in leukemia. The compromised bone marrow function leads to inadequate production of platelets, resulting in bleeding and bruising.
B. While generalized edema and rash can occur in various conditions, they are not specific to ALL and are not common initial findings. Edema might be seen in certain contexts (e.g., renal involvement or fluid overload), but it is not a hallmark of ALL.
C. Alopecia (hair loss) and pallor (paleness) can occur in clients undergoing chemotherapy for ALL, but they are not typically initial findings at the time of diagnosis. Pallor may result from anemia, which can develop as a consequence of the disease, but it is not the most immediate or characteristic symptom of ALL.
D. Bradycardia (slow heart rate) and lethargy are not typical initial findings of ALL. Lethargy could be present due to anemia or other systemic effects, but bradycardia is not commonly associated with the disease and would require further investigation for other underlying causes.
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