Dosing

Ampicillin 1.5g in 100 mL of normal saline to be administered 30 min every 6 hours. Drip factor is 15 gtt/mL. What is rate in drip per minute?

1.5g x 100mL x 15 gtt = 2250 2250/ 1.5g = 1500 1500/30 = 50

The nurse determines the total intake for a client diagnosed with acute kidney injury. The client received 650 mL of intravenous fluid, 6 ounces of water, and 8 ounces of chicken broth during the shift. The client's urinary output for the shift is 820 mL. What is the total intake the nurse will record for this client?

6 ounces of water (6 ounces x 30 mL) → 180 mL of water 8 ounces of chicken broth (8 ounces x 30 mL) → 240 mL of chicken broth 650 mL IV fluid 1070 mL total fluid intake

The primary healthcare provider (PHCP) prescribes 250 mL of 0.9% saline to infuse over 75 minutes. How many mL per hour will be administered to the client?

75 minutes / 60 minutes = 1.25 hrs 250 mL / 1.25 hours = 200 mL/hr

Intake and Outtake 1 Ounce is how many mL?

Anything the patient takes or releases that is liquid ex: water, juice, vomit, diarrhea, blood 1 ounce = 30mL

Dose Equation

Desired Dose / Available Dose X mL or Number of tablets

Rate Equation

Dose x Weight x 60 min / Concentration (mL, mg, mcg)

PHCP prescribes dopamine at 5/mcg/kg/ minute. Patient weighs 178lbs and medication label reads dopamine 800mg in 500mL D5W. How many mL per hour will be administered to patient?

Dose x Weight x 60 min / Concentration (mL, mg, mcg) 178lbs / 2.2 = 80.9kg 5 mcg x 80.9kg x 60 min = 24270mcg 24270 mcg = 24.27 mg 24.27 mg / 800 mg x 500 mL = 15.16 mL/hr

Ice Chips Intake

For ice chips, half of the total volume should be documented as fluid - 1 cup of ice chips (240 mL) = 1/2 cup of water (120 mL)

The nurse is reviewing the client's intake and output for the twelve-hour shift. The client consumed three eight-ounce cups of water. The client received 0.9% saline at 70 mL/hr. The client received 250 mL of azithromycin for a bacterial infection. The client received 2 mL of 4 mg morphine sulfate that was diluted with 5 mL of saline. When calculating the total intake for the client, the nurse should document how many mL?

One cup = 240 mL x 3 cups = 720 mL 70 mL/hr x 12 hours = 840 mL Azithromycin = 250 mL Morphine = 2 mL + 5 mL saline = 7 mL 1817 mL total fluid intake

The nurse is calculating intake for a client. The client received 0.9% saline at 125 mL/hr for six hours, three cups of cranberry juice, one cup of coffee, and one cup of water. The nurse should calculate the client's total intake as how many mL?

One cup = eight ounces = 240mL The client received a 0.9% saline infusion at 125 mL/hr for six hours → 750 mL total Three cups of cranberry juice → 720 mL One cup of coffee → 240 mL One cup of water → 240 mL When added up, the total intake was 1950 mL

One Ounce to mL

One ounce (oz) is equivalent to 30 mL

The nurse is calculating the 12-hour intake for a client The client received 0.45% saline at 85 mL/hr One eight-ounce cup of ice chips One eight-ounce cup of coffee One eight-ounce cup of ice cream Three eight-ounce cups of water One eight-ounce cup of pureed vegetables The nurse should calculate the client's total liquid intake as how many mL

The client received 0.45% saline at 85 mL/hr x 12 hours → 1020 mL One eight-ounce cup of ice chips → 120 mL When determining the total mL for a cup of ice, the nurse should divide the volume by 1/2 since the ice melts One eight-ounce cup of coffee → 240 mL One eight-ounce cup of ice cream → 240 mL Three eight-ounce cups of water → 720 mL One eight-ounce cup of pureed vegetables → This is excluded from the intake calculation as pureed food(s) are not a liquid at room temperature Total → 2340 mL

Microdrip

Total volume x Drop Factor / mins

Nurse is calculating IV fluid resuscitation for a client weighing 85kg with visible partial-thickness burns covering 40% of the body. Using the Parkland Formula, ow many liters of IV fluid resuscitation are needed during the first 8 hours?

fmL x weight (kg) x % TBSA burned = total infsion volume 4mL x 85kg x 40% TBSA = 13,600 mL 13,600 mL / 2 = 6800mL 6,800 mL = 6.8 L

Intravenous heparin

typically administered as a bolus dose first, then as a continuous infusion to achieve therapeutic aPTT. The goal is to prolong the aPTT from 1.5 to 2.5 times the control value. The normal aPTT value is 30-40. A baseline aPTT should be collected 6 hours after the first dose and 6 hours following any dose adjustments.

The nurse is caring for a client receiving a continuous infusion of heparin. The label reads 25,000 units of heparin in 500 mL of Dextrose 5% in water (D5W). The client is receiving 1,250 units per hour. How many milliliters (mL) did the client receive in an eight-hour shift? Fill in the blank.

1250 units / 25000 units x 500 mL = 25 mL/hr 25 mL/hr x 8 hours = 200 mL

The nurse is caring for a client receiving a continuous infusion of heparin. The label reads 25,000 units of heparin in 500 mL of Dextrose 5% in water (D5W). The client is receiving 1,250 units per hour. How many milliliters (mL) did the client receive in an eight-hour shift?

1250 units / 25000 units x 500 mL = 25 mL/hr 25 mL/hr x 8 hours = 200 mL

The primary healthcare provider (PHCP) prescribes doxycycline to be administered over one hour. The pharmacy supplies the medication in a bag labeled 200 mg of doxycycline in 150 mL of 0.9% saline. The drop factor is 10 gtts/mL. The nurse sets the flow rate at how many drops per minute?

150 mL x 10 gtt = 1500 mL 1500 mL / 60 minutes = 25 gtts/min

The primary healthcare provider (PHCP) prescribes dopamine at 5 mcg/kg/minute. The client weighs 178 lbs. The medication label reads dopamine 800 mg in 500 mL of dextrose 5% water (D5W). How many mL per hour will be administered to the client?

178 lbs / 2.2 = 80.9 kg 5 mcg x 80.9 kg x 60 minutes = 24270 mcg 24270 mcg / 1000 mg = 24.27 mg 24.27 mg / 800 mg x 500 mL = 15.16 mL/hr 15.16 mL/hr = 15 mL/hr

The primary healthcare provider (PHCP) prescribes amoxicillin 80 mg/kg/day to be given in two divided doses. The infant weighs 19.2 lbs. The label of the medication reads 250 mg/mL of amoxicillin. How many mL of amoxicillin should the nurse administer for one dose?

19.2 lbs / 2.2 = 8.72 kg 80 mg x 8.72 kg = 697.6 mg 697.6 mg / 2 = 348.8 mg (two doses) 348.8 mg / 250 mg = 1.39 mL 1.39 mL = 1.4 mL

The primary healthcare provider (PHCP) prescribes lidocaine at 2 mg/min. The medication label reads lidocaine 1 gram in 500 mL of 0.9% saline. How many mL per hour will be administered to the client?

2 mg x 60 mins = 120 milligrams 120 milligrams / 1000 = 0.12 grams 0.12 grams / 1 gram x 500 mL = 60 mL/hr

The nurse is preparing to administer a regular insulin IV bolus to a client who has hyperglycemic-hyperosmolar state (HHS). The primary health care provider (PHCP) has prescribed an initial bolus dose of 0.1 unit/kg. The client weighs 277 lbs. How much regular insulin should the nurse administer to the client as an IV bolus?

277 lbs → 125.90 kg 0.1 units x 125.90 kg = 12.59 units 12.59 units = 13 units

Parkland Formula for burns

4ml x kg x TBSA (1/2 vol in first 8 hours, last 1/2 over next 16 hours) The Parkland formula is a guide to determining the 24-hour fluid replacement following a major thermal burn. The phases of fluid replacement include the first eight hours and the remaining sixteen. The client's weight in kilograms will be multiplied by the total body surface area burned, then multiplied by 4 mL After the 24-hour fluid total is determined, it should be divided by two (for the two phases)

A nurse is preparing to administer vancomycin to a child. The order is for 50 mg/kg/day in three divided doses. The client weighs 13 kg. The medication label indicates vancomycin 500 mg in 100 mL of 0.9% saline. How many mL will the nurse administer per dose?

50 mg x 13 kg = 650 mg per day 650 mg/day / 3 doses/day = 216.66 mg 216.66 / 500 mg x 100 mL = 43.32 mL 43.32 mL = 43 mL

PCHP prescribes 500 mL of 0.9 saline to infuse over four hours via intravenous microdrip drip tubing. The nurse sets the flow rate at how many drops per minute?

500 mL x 60 gtt (micro drip tubing is always 60) = 30,000 4 hours x 60 minutes = 240 minutes 30,000 mL / 240 minutes = 125 gtt/min