Question

x4

            Order             :           Aspirin 10 gr PO q.4.h. prn

Supply           :           Aspirin 300 mg tablet

How many tablets should be given to the patient?

Rx5

                        Order             :           Nitroglycerin 0.4 mg PO stat

                        Supply           :           Nitroglycerin 1/150 gr tablet

                        How many tablets should the patient received?

Answer 1

Answer x4 - Order for aspirin = 10 grain

1 grain = 64.799 mg

So 10 grain equal to = 647. 989 mg

Available dose = 300 mg

Total number of tablets = required /available ×Tablets

= 647.989/300 × 1 tablets

= 2 tablets approximate

So required 2 tablets of available aspirin

Answer Rx5 - Order nitroglycerin = 0.4 mg

Supply nitroglycerin = 1/150 grain

1 grain = 64.799 mg

So 1/150 grain = 0.432 mg

Require tablets = required /available ×Tablets

= 0.4 /0.432 × 1

= 1 tablets approximate

So required tablets of nitroglycerin = 1 tablets