7_Rx_Calculation Flashcards

1
Q

Which type of products are measured in mEq/mL

A

Electrolytes
Monovalents => same number of mmol (1 mEq = 1 mmol)
Divalents => half number of mmol (1 mEq = 0.5 mmol)

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2
Q

How much mL is 1 fl oz?

A

30 mL (29.57 mL)

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3
Q

How many mL is 1 cup?

A

240 mL (236.56 mL)

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4
Q

How many fl oz is 1 cup?

A

8 oz

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5
Q

How many mL is 1 pint

A

480 mL (473 mL)

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6
Q

How many fl oz is 1 pint?

A

16 oz (2 cups)

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7
Q

How many mL is 1 quart?

A

960 mL (946 mL)

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8
Q

How many pints is 1 quart?

A

2 pints (4 cups)

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9
Q

How many mL is 1 gallons?

A

3,840 mL (3,785 mL) (3.84 L)

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10
Q

How many quart is 1 gallon?

A

4 quarts (8 pints, 16 cups)

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11
Q

How many pounds is 1 kg

A

2.2 pounds

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12
Q

How many grammes is 1 oz?

A

28.4 g

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13
Q

How many grammes is 1 pound (lb)?

A

454 g

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14
Q

How many grammes is 1 grain (gr)?

A

65 mg (64.8 mg)

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15
Q

How many cm in 1 inch (in)

A

2.54 cm

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16
Q

How many inches in 1 foot?

A

12

17
Q

A patient weights 176 pounds. What is the patient’s weight in kilograms?
Apply proportion and dimensional analysis.

A

See Rx Prep p84

18
Q

How many millilitres are in 5 liters?

Apply proportion and dimensional analysis.

A

See Rx Prep p85

19
Q

How many nanograms are equal to 5 kg?

Apply proportion and dimensional analysis.

A

See Rx Prep p85

20
Q

How many grams are equal to 50,000,000 nanograms.

Apply proportion and dimensional analysis

A

See Rx Prep p85

21
Q

Conversion factors for specific drugs

A

See p91 Rx Prep

Aminophylline (80% theophylline) / Theophylline: 0.8

22
Q

Order of operations

A

B-PEMDAS

Bill, Please, Eat Mom’s Delicious Apple Strudel

23
Q

What are the 3 types of percentage concentration?

A

Percent weight-in-volume (g / 100 ml)
Percent volume-in-volume (ml / 100 ml)
Percent weight-in-weight (g / 100 g)

24
Q

Normal saline (NS) - concentration in NaCl

A

0.9 % weight-in-Volume => 0.9 g NaCl in 100 ml water

25
Q

Half normal saline solution - 1/2NS - NaCl concentration?

A

0.45 % w/v => 0.45 g NaCl / 100 ml water

26
Q

1/4 NS solution - concentration in NaCl?

A

0.225 % w/v => 0.225 g NaCl / 100 ml water

27
Q

D5W solution - concentration in dextrose?

A

5% w/v => 5 g dextrose / 100 ml water

28
Q

D20W IV fluid - concentration in dextrose

A

20 % w/v => 20 g dextrose / 100 ml water

29
Q

D5NS IV fluid - concentration dextrose / NaCl

A

5 % dextrose (w/v) / 0.9 % NaCl (w/v)

30
Q

D5 1/2NS IV fluid - concentration

A

Dextrose 5 % (w/v) in NaCl solution 0.45% (w/v)

31
Q

Carbamazepine to oxcarbazepine dose conversion

A

1.2-1.5 x carbamazepine dose

32
Q

Conversion fosphenytoin in phenytoin

A

1.5 mg of fosphenytoin = 1 mg phenytoin