Conversions
Dosage Calculations
IV Drip Rate
IV Flow Rate
Pharmacology
100

Convert the following: 5 tbs = __ mL?

What is 75mL

5 tbs x 15mL / 1 tbs = 75mL

100

The NP has ordered 100mg IM b.i.d. of a drug that is available in 5 mL vials labeled 50mg/mL. How many mL will you administer per dose?

What is 2mL per dose.

100mg/dose x 1mL/50mg = 2mL/dose

100

Calculate the flow rate in drops (gtt)/min:

1000mL infused over 5 hours with a drop factor of 20 gtts/ml

What is 67 gtts/min

1000mL/5h x (1h/60min)x(20gtts/ml) = 67 gtts/min

100

Calculate the flow rate in mL/hr: 1000ml infused over 4 hours.

What is 250 ml/hr.

1000ml/4hr = 250 ml/hr

100

The nurse is preparing to administer an intramuscular injection to an infant who is 8 months old. Which muscle would be the most appropriate injection site?

A) Deltoid

B) Dorsogluteal

C) Vastus Lateralis

D) Ventrogluteal 

What is C) Vastus Lateralis

200

Convert the following: 6.5g = ___ mg

What is 6500 mg

6.5 g x 1000 mg / 1 g = 6500 mg

200

You have an order to administer a 400mg dose IM of a drug that is available in 10mL vials containing 1 g. How many mL will you administer?

What is 4mL.


400mg (10mL/1 g) x (1 g/1000mg) = 4 mL

200

Calculate the flow rate in drops (gtt)/min:

250mL infused over 2 hours with a microdrip set (60gtts/mL)

What is 125 gtts/min

250ml/2h x (1h/60min) x (60 gtts/mL) = 125 gtts/min

200

Calculate the flow rate in mL/hr:

500mL infused over 3 hours

(round to the nearest tenth mL/h)

What is 166.7 mL/hr.

500ml/3hrs = 166.7 ml/hr rounded

200

What should the nurse take into consideration when giving medication to an older adult client?

A) The serum albumin level of an older adult is lowering, thus decreasing drug metabolism

B) The older adult client metabolizes and excretes at a decreased rate

C) Medication affects the older adult client during the early hours of the morning

D) Medication has an increased effect on the respiratory system of the older adult client

What is B). The ability to metabolize and excrete medication decreases with the aging process. 

300

Convert the following: 1 cup = __ mL

What is 240mL


300
The order is for 1 g PO and you have 250 mg capsules available. How many capsules will you administer?

What is 4 caps.

1 g (1 cap/250mg) x (1000mg/1 g) = 4 caps

300

Calculate the flow rate in drops (gtt)/min:

100mL infused over 1 h with a drop factor of 15 gtt/mL

What is  25 gtt/min

100ml/hr x (1hr/60 min) x (15 gtts/mL) = 25 gtts/min

300

Calculate the flow rate in mL/hr:

250ml infused over 90 minutes

What is 166.7 ml/hr

250mL/90min x (60min/1hr) = 166.7 ml/hr

300

A client asks the nurse about an alternative remedy for hot flashes. Which dietary supplement is the client aking the nurse about?

A) Ginseng

B) Valerian

C) Feverfew

D) Black Cohosh

What is D. Black Cohosh is an herbal supplement used for treating symptoms of menopause, including hot flashes, vaginal dryness, palpitations, and depression. 

400

Convert the following: 0.85kg = ___ lb

What is 1.87 lb

0.85kg lb x 2.2 kg / 1lb = 1.87lb

400

A 6 YO 42lb child with acute otitis media is to receive oral amoxicillin 80 mg/kg/day divided every 12 hours. The amoxicillin is available in 75mL bottles containing 400 mg/5mL. How many mL will you administer per dose?

What is 9.5 mL/dose.

start with converting weight

80mg/kg/day x (42lb/2.2kg) x (1 day/2 doses) x (5ml/400mg) = 9.5 mL/dose

400

A 52 YO female who weighs 76 kg is to receive vancomycin 2 g in 400 mL D5W at a rate of 10 mg/min. At what rate will you set the IV infusion pump?

What is 120 mL/hr

10mg/min x (400ml/2g) x (1g/1000mg) x (60min/h) = 120ml/hr

400

Calculate the flow rate in mL/hr:

500mL infused over 4 hours 15 minutes

What is 117.6 mL/hr

15 minutes x 1 hr/60 min = 0.25 hr + 4hr = 4.25hr 

500mL/4.25 hr = 117.6 mL/hr

400

A nurse is reinforcing teaching for a client who is to begin taking a new prescription for niacin (Niacor). The nurse should instruct the client to expect which of the following?

A) Facial flushing

B) Frontal headache

C) Blurred vision

D) Dry mouth

What is A). Facial flushing occurs within a few minutes after taking Niacor. It can be prevented by taking ASA 32mg 30min before dosing. 

500

Your patient has had the following intake: 2 ½ cups of coffee (240 mL/cup), 11.5 oz of grape juice, ¾ qt of milk, 320 mL of diet coke, 1 ¼ L of D5W IV and 2 oz of grits. What will you record as the total intake in mL for this patient?

What is 3265mL.

Rationale:

  • 1 qt = 1,000 ml
  • 1 oz = 30 ml
  • 2 ½ cups is equal to 600 ml.
  • 11.5 oz is equal to 345 ml.
  • ¾ qt is equal to 750 ml.
  • Add 600 ml, 345 ml, 750 ml, 320 ml, and 1250 ml to get 3,265 ml.

600 ml + 345 ml + 750 ml + 320 ml + 1,250 ml = 3,265 ml (Grits is not liquid at room temperature, so it is not included when calculating intake.)

500

A 45 YO 152lb adult has an order for ceftazidime 90mg/kg/day IV in divided doses every 8 hours. How many mg will you administer per dose?

What is 2073 mg/dose. 

90mg/kg/day x (152lb x 1kg/2.2lb) x (1 day/3 doses) = 2073 mg/dose

500

Your 55kg patient is experiencing angina and has an order for nitroglycerin 5 mcg/min IV. The NTG is available as 100mg/250 mL. At what rate will you set the IV infusion pump?

What is 0.8mL.

5mcg/min x (250mL/100mg) x (1mg/1000mcg) x (60min/h) = 0.8mL/h

500

Your 81 kg patient has an order for dobutamine 15 mcg/kg/min IV to start at 0900. The dobutamine is available as 500mg in 250mL D5W. At what rate will you set the IV infusion pump?

What is 36.5 mL/h.

15mcg/kg min x (81 kg x 250ml/500mg) x (1mg/1000mcg) x (60min/hr) = 36.5 mL/hr

500

A nurse is caring for a client who had a prescription for tizanidine (Zanaflex) for relief of muscle spasm following a back injury. Which of the following lab values should the nurse expect to monitor while the client is taking this medication?

A) Serum creatinine

B) Liver enzymes

C) WBC count

D) RBC count

What is B). An adverse reaction to Tizanidine is liver damage. Monitor liver enzymes while the client is taking this medication.