Question

reinforce your mastery of previous chapters.

1. $88\\ mm = \underline{\quad\quad}\\ cm$
2. $40\\ oz = \underline{\quad\quad}\\ lb$
3. $3.7\\ l = \underline{\quad\quad}\\ ml$
4. $5\\ t = \underline{\quad\quad}\\ t$
5. $5\\ ft = \underline{\quad\quad}\\ in$
6. $2\frac{1}{2}$ cups per day $= ?$ ounces per week
7. order: dilantin (phenytoin) $300\\ mg$ po t.i.d. how many grams are to be administered to the patient in the course of one day?
8. a patient must drink $16$ ounces of the laxative golytely. how many cups must the patient drink?
9. order: ritalin (methylphenidate hydrochloride) $20\\ mg$ po daily in $2$ divided doses. how many $mg$ of this psychostimulant drug will you administer to the patient with attention - deficit hyperactivity disorder (adhd)?
10. what is missing from this order? sitavig (acyclovir) $50\\ mg$ apply within one hour after the onset of symptoms and before the appearance of any signs of herpes labialis lesions.
11. if a patient receives a drug $40\\ mg$ po b.i.d., how many $mg$ would be administered in a 24 - hour period?
12. if a patient receives a drug $40\\ mg$ po q12h, how many $mg$ would be administered in a 24 - hour period?
13. if a patient receives a drug $40\\ mg$ po daily in two divided doses, how many $mg$ would be administered in a 24 - hour period?
14. write $9:30$ p.m. in military time.
15. a patient must receive a drug q6h. if the patient gets one dose at $1900\\ h$, at what time would the next dose be administered?

Explanation:

Step1: Convert mm to cm (1 cm=10 mm)

$88\ \text{mm} = \frac{88}{10}\ \text{cm} = 8.8\ \text{cm}$

Step2: Convert oz to lb (1 lb=16 oz)

$40\ \text{oz} = \frac{40}{16}\ \text{lb} = 2.5\ \text{lb}$

Step3: Convert L to mL (1 L=1000 mL)

$3.7\ \text{L} = 3.7 \times 1000\ \text{mL} = 3700\ \text{mL}$

Step4: Convert short ton to ton (1 t=2000 lb, 1 short ton=2000 lb, so 1 T=1 t)

$5\ \text{T} = 5\ \text{t}$

Step5: Convert ft to in (1 ft=12 in)

$5\ \text{ft} = 5 \times 12\ \text{in} = 60\ \text{in}$

Step6: Convert cups/ day to oz/ week (1 cup=8 oz, 1 week=7 days)

$2\frac{1}{2}\ \text{cups/day} = 2.5 \times 8 \times 7\ \text{oz/week} = 140\ \text{oz/week}$

Step7: Calculate daily Dilantin dose (t.i.d.=3x/day, 1g=1000mg)

$300\ \text{mg} \times 3 = 900\ \text{mg} = 0.9\ \text{g}$

Step8: Convert oz to cups (1 cup=8 oz)

$\frac{16}{8}\ \text{cups} = 2\ \text{cups}$

Step9: Calculate single Ritalin dose (2 divided doses)

$\frac{20}{2}\ \text{mg} = 10\ \text{mg}$

Step10: Identify missing order detail

The order lacks the application site (where to apply the acyclovir).

Step11: Calculate daily dose (b.i.d.=2x/day)

$40\ \text{mg} \times 2 = 80\ \text{mg}$

Step12: Calculate daily dose (q12h=2x/day)

$40\ \text{mg} \times 2 = 80\ \text{mg}$

Step13: Calculate total daily dose (2 divided doses of daily 40mg)

Total daily dose = $40\ \text{mg}$

Step14: Convert PM time to military time

$9:30\ \text{P.M.} = 9+12:30 = 2130$

Step15: Calculate next q6h dose time

$1900 + 600 = 2500$, $2500-2400=0100$ (next day)

Answer:

1. $8.8$
2. $2.5$
3. $3700$
4. $5$
5. $60$
6. $140$
7. $0.9$
8. $2$
9. $10$
10. The order is missing the specific application site (where to apply the acyclovir).
11. $80$
12. $80$
13. $40$
14. $2130$
15. $0100$ (next day)