Taking into account the definition of units/mL, the correct option is option C. The nurse should administer 2.15 mL.
Heparin is an anticoagulant drug used in the treatment and prevention of blood clots caused by certain medical conditions or medical procedures. Heparin is also used before surgery to reduce the risk of blood clots. That is, this drug works by decreasing the blood's ability to clot.
The results of some medical tests are reported in units per milliliter (u/mL). This unit of concentration expresses unit of activity per unit of volume.
In this case, Heparin is available in 2,000 units/mL ands this means that for every 1 mL, there are Heparin 2,000 units.
Then you can apply the following rule of three: if 2,000 units are present for every 1 mL, 4,300 units are present in how many mL?
volume= (4,300 units× 1 mL) ÷ 2,000 unita
Solving:
volume= 2.15 mL
In summary, the correct option is option C. The nurse should administer 2.15 mL.
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