Caffeine and paracetamol have retention times of 11.80 and 13.25 min, respectively, on a 25.0-cm C18 column. An unretained species passes through the column in 1.15 min. The peak widths for caffeine and paracetamol are 1.01 and 0.95 min, respectively. Calculate the average number of plates in the column.

Caffeine and paracetamol have retention times of 11.80 and 13.25 min, respectively, on a 25.0-cm C18 column. An unretained species passes through the column in 1.15 min. The peak widths for caffeine and paracetamol are 1.01 and 0.95 min, respectively. Calculate the average number of plates in the column.

Curren'S Math For Meds: Dosages & Sol

11th Edition

ISBN:9781305143531

Author:CURREN

Publisher:CURREN

Chapter9: Parenteral Medication Labels And Dosage Calculation

Section: Chapter Questions

Problem 7.7P

See similar textbooks

Similar questions

From the following data, find the % (w/w) cream of tartar (KHC4H406, MM=188): Wt of sample = 1.4160 g NaOH titrant used = 20.87 mL HCI used for back titration = 1.27 mL 1.00 mL HCI 1.12 mL NaOH 1.00 mL HCI A 0.01930 g CaCO3 89.08% (w/w) 87.12% (w/w) O 47.75% (w/w) O 95.59% (W/w)
Assume that Ali (same patient in question 1) was prescribed vancomycin 1000 mg every 36 hours. After few days, Steady-state vancomycin concentrations were obtained before and after the fourth dose, and the peak concentration (obtained ½ hour after a 1- hour infusion of vancomycin) was 34 µg/mL while the trough concentration (obtained immediately before dosage administration) was 2.5 pg/mL. Compute a revised vancomycin dose for this patient to provide a steady-state peak concentration of 48 ug/mL and a steady- state trough concentration of 17 pg/mL. a. Estimate new rate constant (Ke) and half-life (t1/2) b. Estimate volume of distribution (Vd) using this equation Cmaxss + Cminss C. Calculate the new dose interval d. Calculate the new dose
You have an order for 1 gram of Cefazolin in D5W 100 ml. You have added 5 ml of sterile water to the 1 gram vial to reconstitute powder. However the recommended manufacturer’s diluent amount is 10 ml of sterile water for a final concentration of 100 mg/ml. How would reconstituting the vial with 5 mls affect the concentration and the final calculated dose. Please answer with explanation ASAP. I will really upvote. Thanks
Infuse heparin at 1,200 units per hour from a solution containing 40,000 units of heparin in 500 mL D5W. How many mL/hr will deliver the ordered dosage?
A hospital pharmacy has available 2-mL prefilled syringes containing 80 mg of tobramycin and 1.5-mL prefilled syringes containing 60 mg of tobramycin. The syringes are calibrated in 0.25-mL units. Explain how you would prepare a medication order calling for 110 mg of tobramycin to be added to 100 mL of D5W for intravenous infusion.
After three minutes, the concentration of drug Zip in the red blood cells is 10 mmoles l-1. What is the average rate of entry of drug Zip into the red blood cells in units of moles min-1 red blood cell-1 during the first three minutes after placing the red blood cells into the bathing solution? Assume that each red blood cell occupies about 1 x 10-13 liters.
A prescription order calls for 1.25 g of vancomycin in 500 mL of NS (0.9%/100mL). After reconstitution vancomycin injection is available in a strength of 50 mg/mL. How many mL of vancomycin injection should be drawn up to prepare this prescription?
What is the difference between Cockroft gault formula and Ckd-epi creatinine equation? Does both measures creatine clearance? What is more accurate to use? Based on the table below, what would be the recommended dosage of "Levofloxacin 500 mg IV every 24 hours" if the 72-year-old patient weight is 78 kg and has a serum creatinine: 3.2 mg/dL?
A patient has TC levels of 4.8 mmol/L and TG of 1.4 mmol/L, what are his HDL-C and LDL-C levels considering the electrophoretogram values are as follows: LDL-C = 48.8%, VLDL-C = 12.3%, Lp(a)-C = 0.1% and HDL-C = 38.8%? Show full calculation.
A 158lb adult male diagnosed with endocarditis has an order for gentamicin 3mg/kg/day IV in 2 divided doses, in addition to vancomycin. The Gentamicin is available in 2 mL vials containing 40mg/mL. The facility protocol is to round the gentamicin dose to the nearest 10mg, then calculate the volume of solution to the nearest tenth mL. How many mL will administer per dose?
The recommended pediatric dose of leuprolide acetate suspension for intramuscular injection is 7.5 mg, once per month, for a child weighing 25 kg. What is the equivalent dose, based on mg/m2, for this child measuring 36 inches in height? Use the BSA equation as needed.
You have an order for 1 gram of Cefazolin in D5W 100 ml. You have added 5 ml of sterile water to the 1 gram vial to reconstitute powder. However the recommended manufacturer’s diluent amount is 10 ml of sterile water for a final concentration of 100 mg/ml. How would reconstituting the vial with 5 mls affect the concentration and the final calculated dose?