Order: Keflex 80 mg p.o. Q.i.d. 
Supply: Keflex oral suspension 250 mg/5ml 
How many ml would you give

To determine how many mL of the Keflex oral suspension (250 mg/5 mL) you need to administer for an 80 mg dose, follow these steps:

1. **Identify the concentration** of the suspension:  
   The Keflex oral suspension contains 250 mg of medication per 5 mL.  

2. **Set up a proportion** to find out how many mL contains 80 mg:  
   \[
   \frac{250 \, \text{mg}}{5 \, \text{mL}} = \frac{80 \, \text{mg}}{x \, \text{mL}}
   \]

3. **Solve for \( x \):**  
   Cross-multiply and solve for \( x \):
   \[
   250x = 5 \times 80
   \]
   \[
   250x = 400
   \]
   \[
   x = \frac{400}{250} = 1.6 \, \text{mL}
   \]

So, you would give **1.6 mL** of the Keflex oral suspension for an 80 mg dose.

Would you like more details or have any questions?

Here are 5 related questions to expand your understanding:
1. How would you calculate the dosage for a different amount, like 100 mg?
2. What is the total daily volume if Keflex is given 4 times a day?
3. How do you calculate dosages for other medications with different concentrations?
4. What factors might affect dosage calculations, such as patient weight or age?
5. How do you convert mg/kg dosages to mL for pediatric patients?

**Tip:** Always double-check your dosage calculations, especially when dealing with different units of measurement like mg and mL.

Order: Keflex 80 mg p.o. Q.i.d. Supply: Keflex oral suspension 250 mg/5ml. How many ml would you give?

Learn how to calculate the correct volume of Keflex oral suspension for an 80 mg dose based on a 250 mg/5 mL concentration. This problem demonstrates how to use proportions and cross-multiplication for dosage calculations. Suitable for students in Grades 6-8.

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