NUR 325 Complex / Doris Turner Med Math Questions And Answers. A Graded.Problem type: IV infusion rate + infusion
pump Medication:
... [Show More] azithromycin
PROBLEM
Suppose Mrs. Turner’s orders call for 500 mg of azithromycin to be administered
intravenously for communityacquired pneumonia. The solution has been diluted to a
concentration of 2 mg/mL and needs to be administered over 1 hour.
At what rate should the infusion pump be set?
HINT
Start by figuring out how many milliliters will be needed to administer the ordered dose.
SAMPLE SOLUTION
1. Determine how many milliliters of the concentration will be delivered to
administer the ordered dose.
500 mg x 1 mL = 250 mL
2 mg
2. Divide the total number of mL needed to deliver the 500 mg by the
expected duration of 1 hour.
250 mL = 250 mL/hr
1 hr
ANSWER
Number: 250
Units / Rate: mL/hr
2. Problem type: Dosage calculation + Stock on
hand Medication: venlafaxine
PROBLEM
Mrs. Turner’s daily medications include venlafaxine extendedrelease, 150 mg, by mouth,
once a day. However, the hospital pharmacy only carries 75 mg extendedrelease
tablets.
How many tablets of venlafaxine extendedrelease should be administered to her?
HINT
You can use the equation below, where X is the number of tablets that should be
administered.
D (ordered dose) x Quantity = X
H (dose on hand)
SAMPLE SOLUTION
1. Determine what information you have.
D (ordered dose) = 150 mg
H (dose on hand) = 75 mg
Q (quantity) = 1 tablet
2. Plug into the equation and solve.
D (150 mg) x 1 tablet = X
H (75 mg)
X = 2 tablets
ANSWER
Number: 2
Units: tablets
3. Problem type: Total daily dosage
Medication: Acetaminophen @ hospital hypothetical
Suppose Mrs. Turner’s provider updated her order for 325 mg, 2 tabs, by mouth q6h
PRN temp. > 100.5 F to 325 mg, 2 tabs, by mouth q4h PRN temp. > 100.5 F. The
Davis’s Drug Guide reports that acetaminophen has a maximum recommended dosage
of 4 g/day.
How many doses can Mrs. Turner take without exceeding the recommended maximum
dosage?
HINT
There are 1000 mg in one gram.
SAMPLE SOLUTION
1. Determine how many milligrams are in 4 grams. [Show Less]