Calculate the amount to administer and choose the correctly marked syringe: syringe ________. Ordered: Lanoxin 0.125 mg deep IM massage stat On hand: Lanoxin 0.25 mg/mL 
Fill in the blank(s) with the appropriate word(s).
A
H = 0.25 mg; Q = 1 mL; D = 0.125 mg 
A = 0.5 × 1 mL
A = 0.5 mL
The ordered dose is half the dose on hand, so 0.5 mL is reasonable. Syringe A is correctly marked to deliver 0.5 mL.
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