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Flashcards in Metrics Deck (62):
0

How do u convert Aminophylline to Theophylline?

Aminophylline x 0.8 = Theophylline

1

How do u convert Theophylline to Aminophylline?

Theophylline divided by 0.8 = Aminophylline

2

Equivalent of tsp (t)?

5ml

3

Equivalent of tbsp (T)?

15ml

4

Equivalent of 1 fl oz?

30ml

5

Equivalent of 1 cup?

8 oz

6

Equivalent of 1 pint?

16 oz or (29.6 x 16) 473ml

7

Equivalent of 1 quart?

2 pints; 946 mL

8

Equivalent of 1 gallon?

4 quarts; 3,785mL

9

Equivalent of 1 kg?

2.2 pounds

10

Equivalent of 1 oz?

28.4g

11

Equivalent of 1 pound?

454g

12

Equivalent of 1 in?

2.54 cm

13

Equivalent of 1 grain (gr)?

65mg (approx); 64.8mg (actual)

14

Equivalent of % (w/v)?

g/100mL

15

Equivalent of % (v/v)?

mL/100mL

16

Equivalent of % (w/w)?

g/100g

17

What's measured concurrently with BMI? Why?

Waist circumference

Bcuz BMI overestimate body fat in persons who are muscular and underestimates in frail elderly

18

How do u calculate BMI?

Weight (kg)/ Height (m2)

Or

(Weight (pounds)/ Height (in)^2) x 704.5

19

IBW - male?

50kg + (2.3kg x each inch over 5 feet)

20

IBW - Women?

45.5kg + (2.3kg x each inch over 5 feet)

21

What does BUN:SCr ratio > 20 indicate?

Dehydration

22

Cockcroft-Gault Equation?


CrCl = 140-(age of pt) x wt in kg (x 0.85 if female)
72 x SCr

23

AdjBW?

IBW + 0.4 (TBW - IBW)

24

What GFR level indicates mild renal insufficiency (Stage 2 CKD)?

60-89 mL/min/1.73m^2

25

What GFR level indicates moderate renal insufficiency (Stage 3 CKD)?

30-59

26

What GFR level indicates severe renal insufficiency (Stage 4 CKD)?

15-29

27

What GFR level indicates renal failure (Stage 5 CKD)?

< 15 or on dialysis

28

How are Aminophylline and Theophylline dosed?

Using IBW

29

Formular for Specific Gravity (SG)?

SG = weight (g)/ volume (mL)

30

Is specific gravity same as density? Difference?

Yes!

Density is SG with units (g/mL)

31

Where do calories from nutrition services come from?

Carbohydrate

Fat

Protein

32

What's the kcal from 1g of carbohydrate and Protein?

Both 1 gm CHO and Protein provide 4 kcal/g

33

The dextrose in PN provides how many calories?

3.4 kcal/gm

34

Kcal/gm from Fat?

9 kcal/gm

35

How many kcal is from IV Fat Emulsion (IVFE)

10%
20%
30%

10% - 1.1 kcal/mL

20% - 2 kcal/mL

30% - 3 kcal/mL

36

How do you determine fluid needs (weight > 20kg)?

1,500ml + (20ml)(wt in kg - 20)

37

BEE in males

66.47 + 13.75(weight in kg) + 5(height in cm) - 6.76(age in years)

38

BEE in females

655.1 + 9.6(weight in kg) + 1.85(height in cm) - 4.68(age in years)

39

TEE

BEE x activity factor x stress factor

40

Nitrogen intake?

Nitrogen intake = gm of protein intake/ 6.25

41

What size filter is used in most TPN formulation, especially with Lipids?

1.2 micron filters

42

What does TEE refer to?

Non-protein calories

T4, don't include calories from protein in ur calculation for TEE

43

How many calories come from the diff formulations of lipids? 10%, 20%, 30%

10% - 1.1 kcal/mL

20% - 2 kcal/mL

30% - 3 kcal/mL

44

What's the principal EXTRAcellular cation?

Na

45

What's the principal INTRAcellular cation?

K

46

Normal range of K?

3.5-5.0 mEq/L

47

When do u need to correct Ca? Formular?

If albumin is low (<3.5 g/dL)

Ca (reported/serum) + [(4.0 - albumin) x 0.8]

48

What type of Ca is preferable?

Ca gluconate over CaCl

49

Which should u add first btw Ca and Phosphate? (After u add dextrose and amino acid)

Add Phosphate first

50

Which compound has 1 as dissolution # of particles?

Dextrose

Mannitol

51

Which compound has 2 as dissolution # of particles?

Potassium Chloride (KCl)

Sodium Chloride (NaCl)

Sodium acetate (NaC2H3O2)

52

Which compound has 3 as dissolution # of particles?

Calcium Chloride (CaCl2)

53

Which compound has 4 as dissolution # of particles?

Sodium Citrate (Na3C6H5O7)

54

Osmolarity Formular?

Wt of substance (g/L)/ MW (g/mole) X (# of particles) X 1,000

55

What's the corresponding dissociation factor (or ionization; i) for 1 dissociated ion?

1

56

What's the corresponding dissociation factor (or ionization; i) for 2 dissociated ions?

1.8

57

What's the corresponding dissociation factor (or ionization; i) for 3 dissociated ions?

2.6

58

What's the corresponding dissociation factor (or ionization; i) for 4 dissociated ions?

3.4

59

What's the corresponding dissociation factor (or ionization; i) for 5 dissociated ions?

4.2

60

Formulae for Sodium Chloride equivalent or "E"?

E = (58.5)(i)/(MW of drug)(1.8)

61

Name meds that cause gap acidosis?

What's the Formular for anion gap?

What's the cut-off to determine gap acidosis?

CUTE DIMPLES

Cyanide, Uremia, Toluene, Ethanol (alcoholic ketoacidosis),
Diabetic ketoacidosis, Isoniazid, Methanol, Propylene glycol, Lactic acidosis, Ethylene glycol and Salicylates

Anion Gap (AG) = Na - Cl - HCO3

A gap is high is > 12mEq/L

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