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Answer Key

Overview

This page contains the complete answers for both Practice Set 1 and Practice Set 2 in a single reference list.

Use this page to check your work after completing a full set — not during. The learning comes from attempting each problem independently first.


Practice Set 1 — Answer Key

# Topic Answer
1 Unit conversion 2500 mg
2 Unit conversion 0.75 mg
3 Unit conversion 65 kg
4 Oral tablet 2 tablets
5 Oral tablet 1.5 tablets (scored only)
6 Oral tablet 3 tablets
7 Oral liquid 7.5 mL
8 Oral liquid 10 mL
9 Oral liquid 3.8 mL
10 Weight-based adult 10 mL
11 Weight-based adult 24 mL
12 Weight-based adult 15 mL (max dose applied)
13 Weight-based adult 0.7 mL
14 Weight-based pediatric 11 mL
15 Weight-based pediatric 10 mL (max dose applied)
16 Weight-based pediatric 10 mL per dose
17 IV flow rate 125 mL/hr
18 IV flow rate 333 mL/hr
19 IV flow rate 550 mL remaining, 3 hr 40 min
20 Drip rate 42 gtt/min
21 Drip rate 60 gtt/min
22 IV medication 167 mL/hr
23 IV medication 20 mL/hr
24 IV medication 11 mL/hr
25 IV medication 2.5 mg/hr

Practice Set 2 — Answer Key

# Answer
1 0.5 tablet (scored only)
2 125 mL/hr
3 5.6 mL
4 375,000 mcg
5 10 mL
6 858 mL/hr (verify order)
7 4 mL per dose
8 18 mL/hr
9 1000 next morning
10 2 tablets
11 21 gtt/min
12 1.36 mL
13 4500 mL
14 23 mL/hr
15 20 mL (max dose applied)
16 250 mL remaining, completes 1330
17 2000 mg total dose, 27 mL/hr
18 13.2 mL per dose
19 21 gtt/min
20 2000 units/hr
21 14 mL per dose
22 20 mL/hr
23 125 mL/hr, at 25% limit — consult prescriber
24 30 mL, 0.03 L
25 Safe, 3.6 mL per dose

Quick Reference — Unit Cancellation Reminders

Setting Up Any Problem

  1. Write what you have
  2. Write what you want
  3. Build the chain so unwanted units cancel
  4. Check which unit remains before calculating
  5. Calculate and round appropriately
  6. Ask — is this a reasonable answer?

Key Conversions to Memorize

Conversion Value
1 kg 2.2 lb
1 g 1000 mg
1 mg 1000 mcg
1 L 1000 mL
1 tsp 5 mL
1 tbsp 15 mL
1 fl oz 30 mL
1 hr 60 min

Key Formulas

Calculation Formula
Flow rate Volume ÷ Time (hr)
Infusion time Volume ÷ Rate
Volume infused Rate × Time
Drip rate (Volume ÷ Time in min) × Drop factor
Drip rate from rate (mL/hr × Drop factor) ÷ 60
Microdrip shortcut gtt/min = mL/hr
Dose verification Rate × Concentration