Phenytoin 1400 mg Solution Volume
1400 mg phenytoin solution ke liye aapko lagbhag 28 mL ki zarurat hogi, agar standard 50 mg/mL concentration use kar rahe hain.
Volume Calculation Based on Concentration
Phenytoin injection typically comes as 50 mg/mL concentration 1. Using this standard formulation:
- 1400 mg ÷ 50 mg/mL = 28 mL
Dilution Requirements for Administration
Phenytoin ko kabhi bhi undiluted nahi dena chahiye - isko hamesha dilute karna zaroori hai 1:
For IV Infusion:
- Final concentration 5 mg/mL se kam nahi hona chahiye
- 1400 mg ke liye: 280 mL normal saline mein dilute karein (28 mL phenytoin + 252 mL NS)
- Yeh 5 mg/mL concentration dega
- Glucose-containing solutions avoid karein - precipitation ho sakti hai 2, 1
Administration Rate:
- Adults: Maximum 50 mg/minute se zyada nahi 1
- Pediatric: 1-3 mg/kg/min ya 50 mg/min, jo bhi slower ho 2, 1
- 1400 mg ke liye approximately 28 minutes minimum lagenge
Critical Safety Points
Cardiac monitoring mandatory hai during aur after infusion 1:
- Hypotension aur arrhythmias ka risk hai
- Heart rate monitor karein - agar 10 beats/min se decrease ho toh infusion slow karein 2
IV site patency check karein saline flush se pehle 1:
- Extravasation se severe tissue injury ho sakti hai
- Large-gauge catheter use karein
- Har injection ke baad saline flush zaroor dein
In-line filter (0.22-0.55 microns) use karein agar infusion de rahe hain 1