Final answer:
The patient will receive 200,000 mcg of the drug.
Step-by-step explanation:
The order instructs the patient to receive 20 mL of a certain drug.
The concentration of the drug is 10,000 mcg/mL.
To calculate the amount of drug the patient will receive, we multiply the concentration by the volume:
20 mL * 10,000 mcg/mL = 200,000 mcg
Therefore, the patient will receive 200,000 mcg of the drug.