Nur246 practice dosage calculation assessment answers suffolk County Community College School of Nursing




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NUR246 PRACTICE DOSAGE CALCULATION ASSESSMENT ANSWERS

Suffolk County Community College

School of Nursing

1. _200mg___ The physician orders Augmentin (amoxicillin and clavulanate potassium) oral suspension 20 mg/kg/day po in divided in three equal doses.

Patients weight: 66 lbs

How many millilgrams should be administered for one dose?


66/2.2= 30 kg

20mg x 30kg =600mg/day to be given TID

600/3= 200mg per dose

2. 10.2ml _ The physician orders Tegretol (carbamazepine) 15mg/kg bid po.

Supply: Tegretol 100mg/5ml.

Patients weight: 30 lbs.

How many milliliters should be administered for one dose?
30lb/2.2= 13.6363636364= 13.6 kg

13.6 x 15 = 204 mg bid (FYI-total daily dose would be 408mg/day. This question is asking how much per dose)
204mg x 5ml = 10.2 ml

100 mg

3. ____1 tab___ The physician orders Omnicef (cefdinir) 15mg/kg po q 12 hrs.

Supply: Omnicef 300mg tablets

Patients weight: 44 lbs

How many tablets are to be administered per dose?
44lb/2.2 = 20 kg

15 x 20= 300 mg q 12 hrs (FYI-total daily dose would be 600mg/day. This question is also asking how much per dose)

300mg = 1 tablet

300mg

4. _1.5 ml______ The physician orders Tagamet (cimetidine) oral suspension 10 mg/kg/day po to be given in equally divided doses bid.

Patients weight: 40 lbs

Using the medication label supplied below, how many milliliters should be administered per dose?


Mixing Directions:

Add 28 ml of water. Store in refrigerator. Discard after 10 days



Tagamet

(cimetidine)

Oral Suspension

300mg/5ml




40lb/2.2 = 18.18181818181= 18.2 kg

10 x 18.2 = 182 mg/day to be given bid 182/2= 91 mg per dose

91mg x 5ml = 1.51666666 = 1.5 ml

300mg

5. ____yes___ The physician orders Paveral (codeine sulfate) elixir 2.8 mg po q 6 hrs for pain.

The drug guide recommended dosage is 0.5-1 mg/kg/day

Patients weight: 34 lbs.

Is the physicians order safe?

34/2.2= 15.45454545454= 15.5 kg

0.5 x 15.5 = 7.75= 7.8 mg/day is the lower range

1 x 15.5= 15.5 mg/day is the higher range

Safe range is 7.8-15.5 mg/day

MD ordered 2.8 mg q 6 hrs = 2.8 x 4= 11.2 mg/day

11.2 falls in the safe range of 7.8-15.5= dose is safe

6. ____3.2 ml___ The physician orders Bumex (bumetanide) injection 0.1mg/kg IM stat.

Supply: Bumex 0.25mg/1ml.

Patients weight: 8 kg.

How many milliliters should be administered per dose?


    1. x 8 kg = 0.8 mg IM state

0.8mg x 1ml = 3.2 ml

0.25mg
7. __9.3ml____ The physician orders Duracef (cefadroxil) oral suspension po 30mg/kg/day in 2

divided doses.

Supply Duracef 250mg/5ml.

Patients weight: 68 lbs

How many milliliters should be administered per dose?
68 lb/2.2= 30.9090909091= 30.9 kg

30mg x 30.9kg= 927mg/day to be given bid

927mg/2= 463.5mg per dose

463.5mg x 5ml = 9.27 = 9.3ml

250 mg

8. ___3.5 ml___ The physician orders Felbamte (phenytoin) 15mg/kg po qid.

Patients weight: 60.8 lbs

Using the medication label supplied below, how many milliliters should be administered per dose?


Mixing directions:

Add 30 ml of water

Mix Vigorously

Discard after 5 days



Felbamate

(phenytoin)

Oral suspension

600mg/5ml




60.8 lb/2.2= 27.6363636364= 27.6 kg

15mg x 27.6= 414mg given qid (FYI-total daily dose would be 1656mg/day. This question is also asking how much per dose)

414 mg x 5ml = 3.45= 3.5 ml

600 mg
9. 124 mg The physician orders sulfamethoxazole and trimethoprim (Bactrim)

Patients weight: 41 lbs

The recommended dose 15-20 mg /kg/day in divided doses every 6-8 hours.

What is the highest dose of Bactrim that can be administered ?



41 lb/2.2 = 18.63636364= 18.6 kg

20 mg x 18.6 = 372 mg/day

372 mg can be given q 6 or q 8

372/4 = 93 and 372/3 = 124 mg

The highest dose is therefore 124 mg
10. ___31 gtt/min___The physician orders IV fluids as follows: Infuse 500ml of 0.33% normal saline solution in 4 hours IV.

Calculate the flow rate when the drop factor is 15 drops per milliliter



500 ml x 15 = 31.25 = 31 gtt/min

240 min


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