Ordered: Lanoxin pediatric elixir 100 mcg PO tid loading dose,for a child with heart failure.
SDR for child over 2 years of age: loading dose 0.02-0.04 mg per kg per 24 hr in 3 divided doses; maintenance dose 0.006-0.012 mg per kg per 24 hr in 2 divided doses
Child's weight: 12 kg
Available:
A)SDR for this child in milligrams: In micrograms:
B)Decision: safe or unsafe order? State the reason.If safe to give, how many milliliters should the nurse prepare?
C)Estimated dose:
D)DA equation:
E)Evaluation:
F)What is the difference between a loading dose and a maintenance dose?

Question

Ordered: Lanoxin pediatric elixir 100 mcg PO tid loading dose,for a child with heart failure.
SDR for child over 2 years of age: loading dose 0.02-0.04 mg per kg per 24 hr in 3 divided doses; maintenance dose 0.006-0.012 mg per kg per 24 hr in 2 divided doses
Child's weight: 12 kg
Available:

A)SDR for this child in milligrams: In micrograms:
B)Decision: safe or unsafe order? State the reason.If safe to give, how many milliliters should the nurse prepare?
C)Estimated dose:
D)DA equation:
E)Evaluation:
F)What is the difference between a loading dose and a maintenance dose?

Fernanda do Valle · Accepted Answer

Final Answer :

a.0.24 mg to 0.48 mg divided in 3 doses; 240 mcg to 480 mcg per day divided in 3 doses
b.Safe.100 mcg* 3 = 300 mcg or 0.3 mg is within the SDR
c.Estimate: 2 mL (2*50 mcg = 100 mcg)
d.

e.Equation is balanced.Estimate supports answer.
f.A loading dose is the first dose of a drug.It is larger than a maintenance dose.The purpose is to achieve a therapeutic level quickly when patient's condition necessitates it.

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