Question

mrs. michelle comes in for a doctor visit. she has swelling in both ankles and has gained 4 pounds in 2 days. she has brought in her medication bottles and currently takes lasix 40 mg every morning by mouth. dr. smith wants her to take 80 mg right away. how many lasix tablets would she need to take? tablets come in 20 mg. question 8 of 10. np helmick has ordered 2 mg of zofran to be given now and then every 8 hours as needed for nausea. the available zofran tablets are 4 mg scored tablets. how many tablets will you administer to the patient in a single dose? question 9 of 10. np almodovar has ordered 0.5mg of cyanocobalamin im now for a patient with a b12 deficiency. available is cyanocobalamin 1000mcg/1ml. how many ml will you give? question 10 of 10.

Explanation:

Question 8:

Step1: Identify dosage - needed and available

The doctor wants the patient to take 80 mg of Lasix and the available tablets are 40 mg each.

Step2: Calculate number of tablets

Use the formula $n=\frac{D}{A}$, where $D$ is the desired dose and $A$ is the available - dose per tablet. So $n = \frac{80}{40}$.
$n = 2$

Question 9:

Step1: Convert ordered dose to mcg

The ordered dose is 0.5 mg of Cyanocobalamin. Since 1 mg=1000 mcg, then 0.5 mg = 0.5×1000 = 500 mcg.

Step2: Identify concentration

The available Cyanocobalamin is 1000 mcg/1 mL.

Step3: Calculate volume

Use the formula $V=\frac{D}{C}$, where $D$ is the desired dose in mcg and $C$ is the concentration in mcg/mL. So $V=\frac{500}{1000}=0.5$ mL

Question 10:

Step1: Identify ordered dose and available dose

The ordered dose of Zofran is 2 mg and the available tablets are 4 mg each.

Step2: Calculate number of tablets

Use the formula $n=\frac{D}{A}$, where $D$ is the desired dose and $A$ is the available - dose per tablet. So $n=\frac{2}{4}=0.5$ tablet

Answer:

Question 8: 2 tabs
Question 9: 0.5 mL
Question 10: 0.5 tab