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Hello all nurses....i need some dosage calc. help! please

Hello everyone......have a few problems for math that i need some help with just to get me started with the hw.. i was wondering if any of you could help me, maybe ellaborate on how you did the problem? It would greatly be appreciated......

Tetracycline hydrochloride 500 mg PO is ordered. Earch capsule is 250 mg. How many capsules are needed?

Sodium pentobarbital(Nembutal)100 mg PO is ordered. This medication comes in 0.1g capsules. How many would you give?

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Tetracycline hydrochloride 500 mg PO is ordered. Earch capsule is 250 mg. How many capsules are needed?

Use the formula dose desired divided by the dose on hand.

500 mg
(dose desired)
/
250 mg
(dose on hand)
=
2

You will give 2 tablets.

Sodium pentobarbital(Nembutal)100 mg PO is ordered. This medication comes in 0.1g capsules. How many would you give?

100 mg
(dose desired)
/
0.1 gram
(dose on hand)
x 1 gram / 1000 mg
(conversion factor)
=
1

You will give 1 tablet.

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