Question

298 Chapter 10 Flow Rates and Durations of Enteral and intravenous Infusions • Cleocin (clindamycin) 360 mg via PEG 212h • enoxaparin 1 mg/kg subcut 12h • Humalog 50/50 mix 35 units subcut before tube feeding • cimetidine HCI 400 mg via PEG at bedtime 2. The IV is infusing via gravity flow. Calculate the rate in mcgtt/min. 3. The strength on the enoxaparin label is 300 mg/ mL. How many milliliters will you administer? 4. Place an arrow at the correct measurement on the most appropriate syringe to indicate the amount of enoxaparin to be administered. 1. The label on the Suprax reads 500 mg/mL. How many milliliters will you administer? 20 30 35

Answer 1

1. Amount to administer = D/H x Q

D- Desired dose

H- Available dose

Q- Quantity or How supplied

Label on suprax (Cefixime) is 500mg/mL and  required dose is 400mg

  So, D= 400mg, H= 500mg, and Q= 1mL

   Amount to administer (mL) = 400mg/ 500mg x 1mL

= 0.8 mL

2. Required IV NS infusion is 90mL /hr

So, mcgtt/min= (Total volume (mL) x Drop factor) / Time in mins  

( 90 x 60) / 60 = 90 mcgtt/min   ( micro drop factor = 60) - Universal

Hence answer is 90 mcgtt/min

3. Amount to administer = D/H x Q   

D- Desired dose

H- Available dose

Q- Quantity or How supplied

Label on Enoxaparin is 300mg/mL  

Required dose is 1mg/kg. Patient weight is 140 pounds = 63.5 kg (1 pound=0.454 kg)

So, the required dose of Enoxaparin is 63.5 x 1 = 63.5 mg

D= 63.5mg, H= 300mg and Q= 1 mL

Amount to administer (mL)= 63.5mg/300mg x 1 mL

= 0.211 mL

4.

0.211 mL = 63.5mg