how many mL of cefazolin 500 mg/mL should a pharmacy tech use to prepare a syring that contains 1g of cefazolin

To solve this problem, we need to calculate the volume (in milliliters) of cefazolin at a concentration of 500 mg/mL required to prepare a syringe containing 1 gram (1,000 mg) of cefazolin.

### Step-by-step Solution:

1. **Convert the desired dose from grams to milligrams:**
   \[
   1 \, \text{g} = 1000 \, \text{mg}
   \]

2. **Set up the concentration formula:**
   \[
   \text{Concentration} = \frac{\text{Dose}}{\text{Volume}}
   \]

   Here, the concentration of cefazolin is 500 mg/mL. We need to find the volume (V) that contains 1,000 mg.

3. **Rearrange the formula to solve for volume:**
   \[
   V = \frac{\text{Dose}}{\text{Concentration}}
   \]

   Substitute the known values:

   \[
   V = \frac{1000 \, \text{mg}}{500 \, \text{mg/mL}}
   \]

4. **Calculate the volume:**
   \[
   V = 2 \, \text{mL}
   \]

### Conclusion:

To prepare a syringe containing 1 gram (1,000 mg) of cefazolin, the pharmacy technician should use **2 mL** of cefazolin at a concentration of 500 mg/mL.

Would you like more details, or do you have any questions about this solution?

### Related Questions:
1. How do you convert grams to milligrams in different scenarios?
2. What are some common concentrations of antibiotics used in pharmacy settings?
3. How do you calculate dosages for medications based on weight?
4. How can you prepare dilutions of a medication to achieve a desired concentration?
5. What safety considerations should be taken when preparing syringes in a pharmacy?

### Tip:
Always double-check your units when calculating dosages to avoid any errors that could lead to incorrect medication administration.

how many mL of cefazolin 500 mg/mL should a pharmacy tech use to prepare a syringe that contains 1g of cefazolin

Learn how to calculate the volume of cefazolin (500 mg/mL concentration) required to prepare a syringe containing 1g (1000 mg) of cefazolin. This pharmacy-related problem involves basic unit conversion and algebraic calculations. Suitable for high school students and pharmacy technicians.

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