Question

now, test yourself!

1. $9.6\\ mg = \underline{\quad\quad}\\ mcg$
2. $0.06\\ g = \underline{\quad\quad}\\ mg$
3. $40\\ mg = \underline{\quad\quad}\\ g$
4. $6.25\\ l = \underline{\quad\quad}\\ ml$
5. $21\\ mm = \underline{\quad\quad}\\ cm$
6. $2\frac{1}{2}\\ pt = \underline{\quad\quad}\\ cups$
7. $24\\ ml = \underline{\quad\quad}\\ cc$
8. $250,000\\ mcg = \underline{\quad\quad}\\ mg$
9. $3.5\\ qt = \underline{\quad\quad}\\ pt$
10. $4\\ t = \underline{\quad\quad}\\ t$
11. $2\\ cups = \underline{\quad\quad}\\ oz$
12. $0.35\\ kg = \underline{\quad\quad}\\ g$
13. use the label in • figure 4.7 to determine the number of micrograms in one biaxin tablet.

figure 4.7
drug label for biaxin.

1. order: doxycycline 100 mg po b.i.d. what is this dose in grams?
2. according to the package insert information in • figure 4.8, would the following order be safe or not? uniphyi (theophylline, anhydrous) 400 mg po b.i.d.

uniphyl®
tablets
(theophylline, anhydrous)
400 mg and 600 mg
dosage and administration
uniphyi® 400 or 600 mg tablets can be taken once a day in the morning or evening.
it is recommended that uniphyi be taken with meals. patients should be advised that if they
choose to take uniphyi with food it should be taken consistently with food and if they take it
in a fasted condition it should routinely be taken fasted. it is important that the product
whenever dosed be dosed consistently with or without food.

Explanation:

Step1: Convert mg to mcg (1mg=1000mcg)

$9.6 \times 1000 = 9600$

Step2: Convert g to mg (1g=1000mg)

$0.06 \times 1000 = 60$

Step3: Convert mg to g (1g=1000mg)

$40 \div 1000 = 0.04$

Step4: Convert L to mL (1L=1000mL)

$6.25 \times 1000 = 6250$

Step5: Convert mm to cm (1cm=10mm)

$21 \div 10 = 2.1$

Step6: Convert pt to cups (1pt=2cups)

$2.5 \div 2 = 1.25$

Step7: Convert mL to cc (1mL=1cc)

$24 \times 1 = 24$

Step8: Convert mcg to mg (1mg=1000mcg)

$250000 \div 1000 = 250$

Step9: Convert qt to pt (1qt=2pt)

$3.5 \times 2 = 7$

Step10: Convert T to t (1T=3t)

$4 \times 3 = 12$

Step11: Convert cups to oz (1cup=8oz)

$2 \times 8 = 16$

Step12: Convert kg to g (1kg=1000g)

$0.35 \times 1000 = 350$

Step13: Convert mg to mcg (1mg=1000mcg)

$500 \times 1000 = 500000$

Step14: Convert mg to g (1g=1000mg)

$100 \div 1000 = 0.1$

Step15: Check dosage safety

The label states 400mg is an approved once-daily dose; b.i.d. (twice daily) would be 800mg total, exceeding the recommended single daily dose range of 400-600mg.

Answer:

1. 9600 mcg
2. 60 mg
3. 0.04 g
4. 6250 mL
5. 2.1 cm
6. 1.25 cups
7. 24 cc
8. 250 mg
9. 7 pt
10. 12 t
11. 16 oz
12. 350 g
13. 500000 mcg
14. 0.1 grams
15. No, the order is not safe. The approved dosage is 400 mg once daily, so 400 mg b.i.d. (800 mg total daily) exceeds the recommended daily dose range of 400-600 mg.