Name
Chamberlain University
NR-226: Fundamentals – Patient Care
Prof. Name
Date
The patient has been prescribed an oral dosage of cephalexin (Keflex) at 325 mg. The medication available is in a concentration of 250 mg per 2 mL. To determine the volume (in mL) the nurse should administer, we perform a dimensional analysis. The calculation yields a required dosage of 2.6 mL.
Dimensional Analysis: [ \frac{2 \, \text{mL}}{325 \, \text{mg}} = \frac{250 \, \text{mg}}{250} ] Calculated Volume: 2.6 mL
The patient has been ordered to take amoxicillin (Amoxil) at a dosage of 2.4 g orally. The available amoxicillin comes in a concentration of 600 mg per 10 mL. Following a dimensional analysis, the nurse should administer 40 mL.
Dimensional Analysis: [ \frac{10 \, \text{mL}}{1000 \, \text{mg}} = \frac{2.4 \, \text{g}}{24000} ] Calculated Volume: 40 mL
For the patient requiring diphenhydramine HCl (Benadryl) at a dose of 37.5 mg orally, the medication available is 12.5 mg per 10 mL. The nurse will need to administer 30 mL based on the dimensional analysis.
Dimensional Analysis: [ \frac{10 \, \text{mL}}{37.5 \, \text{mg}} = \frac{12.5 \, \text{mg}}{12.5} ] Calculated Volume: 30 mL
The order for potassium chloride (K-Lor) is 60 mEq orally. The available concentration is 40 mEq per 10 mL. The calculated volume to administer is 15 mL.
Dimensional Analysis: [ \frac{10 \, \text{mL}}{60 \, \text{mEq}} = \frac{40 \, \text{mEq}}{40} ] Calculated Volume: 15 mL
The patient requires gabapentin (Neurontin) at 275 mg orally. The available dosage is 250 mg per 10 mL. The nurse should administer 11 mL.
Dimensional Analysis: [ \frac{10 \, \text{mL}}{275 \, \text{mg}} = \frac{250 \, \text{mg}}{250} ] Calculated Volume: 11 mL
For a morphine sulfate (Duramorph) order of 60 mg orally, with an available concentration of 20 mg per 10 mL, the nurse should administer 6 tsp.
Dimensional Analysis: [ \frac{1 \, \text{tsp}}{10 \, \text{mL}} = \frac{60 \, \text{mg}}{600} ] Calculated Volume: 6 tsp
The order for tolbutemide (Orinase) is 0.5 g orally, with the available formulation being 250 mg per scored tablet. The nurse will administer 2 tablets.
Dimensional Analysis: [ \frac{1 \, \text{tab}}{1000 \, \text{mg}} = \frac{0.5 \, \text{g}}{500} ] Calculated Volume: 2 tabs
For potassium chloride (K Dur), the patient requires 50 mEq orally. The available dosage is 20 mEq per scored tablet, thus the nurse should administer 2.5 tablets.
Dimensional Analysis: [ \frac{1 \, \text{tab}}{50 \, \text{mEq}} = \frac{20 \, \text{mEq}}{20} ] Calculated Volume: 2.5 tabs
For a metformin (Glucophage) order of 0.5 g orally, with the medication available as 1000 mg per scored tablet, the calculated administration is 0.5 tablets.
Dimensional Analysis: [ \frac{1 \, \text{tab}}{1000 \, \text{mg}} = \frac{0.5 \, \text{g}}{500} ] Calculated Volume: 0.5 tab
The order for atorvastatin (Lipitor) is 50 mg orally, and the available medication is 50 mg per tablet. Therefore, the nurse will administer 1 tablet.
Dimensional Analysis: [ \frac{1 \, \text{tab}}{50 \, \text{mg}} = \frac{50 \, \text{mg}}{50} ] Calculated Volume: 1 tab
The patient has been prescribed digoxin (Lanoxin) at 625 mcg orally. The available dosage is 0.25 mg per scored tablet, resulting in an administration of 2.5 tablets.
Dimensional Analysis: [ \frac{1 \, \text{tab}}{1 \, \text{mg}} = \frac{625 \, \text{mcg}}{625} ] Calculated Volume: 2.5 tabs
The order for hydrochlorothiazide (HydroDIURIL) is 100 mg orally, with the available formulation being 50 mg per scored tablet. The nurse should administer 2 tablets.
Dimensional Analysis: [ \frac{1 \, \text{tab}}{100 \, \text{mg}} = \frac{50 \, \text{mg}}{50} ] Calculated Volume: 2 tabs
For the ordered cyclosporine (Neoral) at 4 mg/kg/day, and given the patient’s weight of 162 lb, the nurse will administer 295 mg daily.
Dimensional Analysis: [ 4 \, \text{mg} \times \frac{162 \, \text{lb}}{1 \, \text{kg}} \times \frac{1 \, \text{kg}}{2.2 \, \text{lb}} = 294.5 \text{ (rounded to 295 mg)} ]
The patient has been ordered sulfasalazine (Axulfidine) at 0.25 g orally, with the available medication being 250 mg per scored tablet. The nurse will administer 1 tablet.
Dimensional Analysis: [ \frac{1 \, \text{tab}}{1000 \, \text{mg}} = \frac{0.25 \, \text{g}}{250} ] Calculated Volume: 1 tab
The order for atropine (AtroPen) is 450 mcg subcutaneously. The available formulation is 0.5 mg per 0.7 mL. The calculated volume for administration is 0.6 mL.
Dimensional Analysis: [ \frac{0.7 \, \text{mL}}{1 \, \text{mg}} = \frac{450 \, \text{mcg}}{315} ] Calculated Volume: 0.6 mL
For enoxaparin (Lovenox) at 1 mg/kg subcutaneously, the patient weighs 180 lb. The nurse will administer 0.8 mL.
Dimensional Analysis: [ 1 \, \text{mL} \times \frac{1 \, \text{mg}}{1 \, \text{kg}} \times \frac{180 \, \text{lb}}{2.2 \, \text{lb}} = 0.8 \text{ mL} ]
The patient has an order for digoxin (Lanoxin) 0.75 mg IVP. The medication available is 500 mcg/mL. The calculated volume for administration is 1.5 mL.
Dimensional Analysis: [ \frac{1 \, \text{mL}}{1000 \, \text{mcg}} = \frac{0.75 \, \text{mg}}{750} ] Calculated Volume: 1.5 mL
The order for cyanocobalamin (Vitamin B12) is 70 mcg subcutaneously, with the available dosage at 0.1 mg/mL. The nurse will administer 0.7 mL.
Dimensional Analysis: [ \frac{1 \, \text{mL}}{1 \, \text{mg}} = \frac{70 \, \text{mcg}}{70} ] Calculated Volume: 0.7 mL
For meperidine HCl (Demerol) at 100 mg IM, the available concentration is 75 mg/mL. The nurse should administer 1.3 mL.
Dimensional Analysis: [ \frac{1 \, \text{mL}}{100 \
, \text{mg}} = \frac{100}{75} ] Calculated Volume: 1.3 mL
The patient has an order for furosemide (Lasix) at 35 mg IVP, with the medication available as 10 mg/mL. The calculated administration volume is 3.5 mL.
Dimensional Analysis: [ \frac{1 \, \text{mL}}{35 \, \text{mg}} = \frac{35}{10} ] Calculated Volume: 3.5 mL
