Calculate the following dosage using ratio and proportions method. Round answers to the nearest tenth. Order: Tegretol 200 mg p.o.t.i.d.
Available

3 tabs
2 tabs
1 1/2 tabs
4 tabs
The Correct Answer is B
Calculate the dosage using the ratio and proportion:
Given:
Order: 200 mg p.o. t.i.d.
Available: Tegretol 100 mg chewable tablets.
Step 1: Set up the proportion
Available dose (100 mg) : 1 tablet = Ordered dose (200 mg) : x tablets
Step 2: Solve for ?
100 mg : 1 tab = 200 mg : ? tabs
? = 200/100 = 2 tablets
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Given:
Ordered dose of clindamycin palmitate: 225 mg
Concentration of clindamycin palmitate oral suspension: 75 mg/5 mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
225 mg / Volume = 75 mg/5 mL
Step 3: Solve for the unknown volume:
Volume = 225 mg / (75 mg/5 mL)
Volume = 225 mg x (5 mL / 75 mg)
Volume = 15 mL
Correct Answer is A
Explanation
Convert the dosage to mcg per hour:
15mcg/min×60min/hr=900mcg/hr15
Convert the available nitroglycerin concentration to mcg/mL:
25mg=25,000mcg
Theconcentrationis(25,000mcg/250mL)=100mcg
Calculate the flow rate in mL per hour using the dosage and concentration:
Flowrate(mL/hr)=(900mcg/hr100mcg/mL)=9mL/hr
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