What laboratory tests should be ordered for M.G. related to the order for furosemide (Lasix)?
Select all that apply.
a. Magnesium level
b. Sodium level
c. Complete blood count (CBC)
d. Serum glucose level
e. Potassium level
f. Coagulation studies
Answers: a, b, d, e
Furosemide is a potent diuretic, especially when given via IVP, and may cause the loss of
electrolytes such as magnesium, sodium, and potassium. These electrolytes will need to be
supplemented if the levels are low. In addition, furosemide may increase serum glucose levels, which
is an issue, considering that M.G. has diabetes. It is not necessary to monitor CBC or coagulation
studies while the patient is on furosemide.
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