cumulative review exercises
review your mastery of previous chapters.
1. prescribers order: administer humulin r (regular insulin rdna origin) subcutaneously as per the following blood - glucose results:
for glucose less than 160 mg/dl. —no insulin
glucose 160 mg/dl - 220 mg/dl. —give 2 units
glucose 221 mg/dl - 280 mg/dl. —give 4 units
glucose 281 mg/dl - 340 mg/dl. —give 6 units
glucose 341 mg/dl - 400 mg/dl. —give 8 units
glucose greater than 400 mg/dl. —notify md stat
how many units will you administer if the patients glucose level at lunchtime is
(a) 140 mg/dl?
(b) 200 mg/dl?
(c) 450 mg/dl?
2. if 40 mg of a drug is ordered po daily and the strength of the drug is 10 mg/ml, how many milliliters will you administer?
3. if 40 mg of a drug is ordered po b.i.d. and the strength of the drug is 10 mg/ml, how many milliliters will you administer?
4. if 40 mg of a drug is ordered po daily in two divided doses and the strength of the drug is 10 mg/ml, how many milliliters will you administer?
5. if 40 mg of a drug is ordered po q12b and the strength of the drug is 10 mg/ml, how many milliliters will you administer?
6. order: dilantin (phenytoin) 250 mg po stat. the concentration of dilantin is 125 mg/5 ml. how many teaspoons will you administer?
7. order: camptosar (irinotecan) 350 mg/m² iv over 90 minutes on day 1 every 3 weeks. how many g will be administered to a patient who has a bsa of 1.95 m²?
8. find the weight, to the nearest tenth of a kilogram, of a patient who weighs 200 pounds.
9. order: glucotrol (glipizide) 15 mg po daily. available tablets are 5 mg per tablet. how many tablets will you administer?
10. a drug is ordered 50 mg b.i.d. how many grams will be administered in 10 days?
11. order: cytovene (ganciclovir) 5 mg/kg iv q12h for 14 d. the patient weighs 110 pounds. how many grams of this antiviral drug will the patient receive over the 14 - day period?
12. using the formula, find the bsa of a patient who is 5 feet tall and weighs 140 pounds.
13. order: natulan (procarbazine hcl) 50 mg/m² /d po. how many mg of this antineoplastic drug would be administered daily to a patient whose bsa is 1.5 m²?
14. what is the most appropriate syringe that would be used to administer 67 units of insulin subcut?
15. your initial calculations indicate that you need to administer 0.66666 ml of a drug im to a geriatric patient. to what volume would you round off, and what size syringe would you use?

Question

Accepted Answer

### 1.
# Explanation:
## Step1: Match glucose to dosage rule
(a) Glucose 140 mg/dL < 160 mg/dL → no insulin
(b) Glucose 200 mg/dL is 160-220 mg/dL → give 2 units
(c) Glucose 450 mg/dL > 400 mg/dL → notify MD stat
# Answer:
(a) 0 units (no insulin)
(b) 2 units
(c) Notify MD stat

---

### 2.
# Explanation:
## Step1: Apply dose formula: $	ext{Volume} = \frac{	ext{Dose Needed}}{	ext{Strength}}$
$	ext{Volume} = \frac{40\ 	ext{mg}}{10\ 	ext{mg/mL}}$
## Step2: Calculate the volume
$	ext{Volume} = 4\ 	ext{mL}$
# Answer:
4 mL

---

### 3.
# Explanation:
## Step1: Apply dose formula: $	ext{Volume} = \frac{	ext{Dose Needed}}{	ext{Strength}}$
$	ext{Volume} = \frac{40\ 	ext{mg}}{10\ 	ext{mg/mL}}$
## Step2: Calculate the volume
$	ext{Volume} = 4\ 	ext{mL}$
# Answer:
4 mL

---

### 4.
# Explanation:
## Step1: Find single divided dose
Single dose = $\frac{40\ 	ext{mg}}{2} = 20\ 	ext{mg}$
## Step2: Apply dose formula
$	ext{Volume} = \frac{20\ 	ext{mg}}{10\ 	ext{mg/mL}} = 2\ 	ext{mL}$
# Answer:
2 mL per dose

---

### 5.
# Explanation:
## Step1: Apply dose formula: $	ext{Volume} = \frac{	ext{Dose Needed}}{	ext{Strength}}$
$	ext{Volume} = \frac{40\ 	ext{mg}}{10\ 	ext{mg/mL}}$
## Step2: Calculate the volume
$	ext{Volume} = 4\ 	ext{mL}$
# Answer:
4 mL

---

### 6.
# Explanation:
## Step1: Find total volume needed
$	ext{Volume} = \frac{250\ 	ext{mg}}{125\ 	ext{mg/5 mL}} = 10\ 	ext{mL}$
## Step2: Convert mL to teaspoons (1 tsp=5 mL)
$	ext{Teaspoons} = \frac{10\ 	ext{mL}}{5\ 	ext{mL/tsp}} = 2\ 	ext{tsp}$
# Answer:
2 teaspoons

---

### 7.
# Explanation:
## Step1: Calculate total dose in mg
$	ext{Dose} = 350\ 	ext{mg/m}^2 	imes 1.95\ 	ext{m}^2 = 682.5\ 	ext{mg}$
## Step2: Convert mg to g
$	ext{Dose} = \frac{682.5\ 	ext{mg}}{1000\ 	ext{mg/g}} = 0.6825\ 	ext{g}$
# Answer:
0.6825 g

---

### 8.
# Explanation:
## Step1: Convert pounds to kg (1 kg=2.205 lbs)
$	ext{Weight} = \frac{200\ 	ext{lbs}}{2.205\ 	ext{lbs/kg}}$
## Step2: Round to nearest tenth
$	ext{Weight} \approx 90.7\ 	ext{kg}$
# Answer:
90.7 kg

---

### 9.
# Explanation:
## Step1: Calculate number of tablets
$	ext{Tablets} = \frac{15\ 	ext{mg}}{5\ 	ext{mg/tablet}} = 3$
# Answer:
3 tablets

---

### 10.
# Explanation:
## Step1: Calculate daily dose
Daily dose = $50\ 	ext{mg} 	imes 2 = 100\ 	ext{mg}$
## Step2: Calculate 10-day dose
Total dose = $100\ 	ext{mg/day} 	imes 10\ 	ext{days} = 1000\ 	ext{mg}$
## Step3: Convert mg to g
Total dose = $\frac{1000\ 	ext{mg}}{1000\ 	ext{mg/g}} = 1\ 	ext{g}$
# Answer:
1 gram

---

### 11.
# Explanation:
## Step1: Convert lbs to kg
$	ext{Weight} = \frac{110\ 	ext{lbs}}{2.205\ 	ext{lbs/kg}} \approx 49.886\ 	ext{kg}$
## Step2: Calculate single dose
Single dose = $5\ 	ext{mg/kg} 	imes 49.886\ 	ext{kg} = 249.43\ 	ext{mg}$
## Step3: Calculate daily dose (2 doses/day)
Daily dose = $249.43\ 	ext{mg} 	imes 2 = 498.86\ 	ext{mg}$
## Step4: Calculate 14-day total dose
Total dose = $498.86\ 	ext{mg/day} 	imes 14\ 	ext{days} = 6984.04\ 	ext{mg}$
## Step5: Convert to grams
Total dose = $\frac{6984.04\ 	ext{mg}}{1000\ 	ext{mg/g}} \approx 6.98\ 	ext{g}$
# Answer:
~6.98 grams

---

### 12.
# Explanation:
## Step1: Convert height to inches (5 ft=60 in)
Use Mosteller BSA formula: $	ext{BSA} = \sqrt{\frac{	ext{Weight (lbs)} 	imes 	ext{Height (in)}}{3131}}$
## Step2: Plug in values
$	ext{BSA} = \sqrt{\frac{140 	imes 60}{3131}} = \sqrt{\frac{8400}{3131}} \approx \sqrt{2.683} \approx 1.64\ 	ext{m}^2$
# Answer:
~1.64 m²

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### 13.
# Explanation:
## Step1: Calculate daily dose
$	ext{Dose} = 50\ 	ext{mg/m}^2 	imes 1.5\ 	ext{m}^2 = 75\ 	ext{mg}$
# Answer:
75 mg

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### 14.
# Answer-Explanation Format
# Brief Explanations:
Insulin syringes are calibrated for insulin units. A 100-unit insulin syringe is the standard for doses up to 100 units, which is appropriate for 67 units.
# Answer:
A 100-unit insulin syringe

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### 15.
# Answer-Explanation Format
# Brief Explanations:
For IM injections in geriatric patients, volumes are rounded to the nearest hundredth of a mL for accuracy. A 1 mL syringe is appropriate for small volumes <1 mL.
# Answer:
Round to 0.67 mL; use a 1 mL syringe

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

1.

Step1: Match glucose to dosage rule

Step1: Apply dose formula: $\text{Volume} = \frac{\text{Dose Needed}}{\text{Strength}}$

Step2: Calculate the volume

Step1: Apply dose formula: $\text{Volume} = \frac{\text{Dose Needed}}{\text{Strength}}$

Step2: Calculate the volume

Answer:

2.