Fluids & Electrolytes

Question 1

Ideal Body Weight Equation (Males)

Answer 1

50kg + (2.3 x in>60)

Question 2

Ideal Body Weight Equation (Females)

Answer 2

45.5kg + (2.3 x in>60)

Question 3

Nutrition Body Weight

Answer 3

IBW + 0.25(wt - IBW)

Question 4

When should you use NBW?

Answer 4

When actual body weight is 130% more than IBW

Question 5

Isotonic fluid (in mOsm/L)

Answer 5

275-290 mOsm/L

Question 6

MIVF calculation

Answer 6

30-40 ml/kg/day

Question 7

Hypovalemic CVP

Answer 7

CVP < 10 mmHg

Question 8

Normal PCWP

Answer 8

5-12 mmHg

Question 9

Normal lactate

Answer 9

< 2 mmol/L

Question 10

Centeral Venous Pressue (CVP) and Pulmonary Capillary Wedge Pressure (PCWP) are determinants of _____.

Answer 10

preload

Question 11

What do you use first line for shock? (agent & dose)

Answer 11

1-2 L IV crystalloids (ex. LR)

Question 12

What do you use second line for shock?

Answer 12

colloid (blood)

Question 13

Goal CVP (post resusitation of shock)

Answer 13

8-12 mmHg

Question 14

Goal MAP (post resusitation of shock)

Answer 14

> /= 65 mmHg

Question 15

Goal UOP (post resusitation of shock)

Answer 15

> 0.5 ml/kg/hr

Question 16

Goal Lactate (post resusitation of shock)

Answer 16

< 2 mmol/L

Question 17

1/2 NS (0.45% NaCl) use

Answer 17

maintenance fluids

Question 18

D5W use

Answer 18

free water replacement

Question 19

NS (0.9% NaCl) use

Answer 19

fluid resusitation; sodium replacement

Question 20

LR (lactated ringers) use

Answer 20

fluid resusitation

Question 21

How much blood is in 1 unit of RBCs?

Answer 21

250 mL

Question 22

1 unit of RBCs increases hemoglobin by ____.

Answer 22

1 g/dL

Question 23

Normal sodium level

Answer 23

135-145 mEq/L

Question 24

Osmolality calculation

Answer 24

Osm = (2 x Na) + (BUN/2.8) + (Glu/18)

Question 25

Normal Osmolality

Answer 25

275-290 mOsm/L

Question 26

Maximum rise in sodium (daily)

Answer 26

8-12 mEq/L/day

Question 27

Maximum rise in sodium (hourly)

Answer 27

0.5 mEq/L/hr

Question 28

Asymptomatic hypovolemic hyponatremia treatment

Answer 28

0.9% NaCl

Question 29

Symptomatic HYPOvolemic hyponatremia treatment

Answer 29

3% NaCl

Question 30

Symptomatic ISOvolemic hyponatremia treatment

Answer 30

Furosemide + 3% NaCl

Question 31

Asymptomatic ISOvolemic hyponatremia treatment

Answer 31

0.9% NaCl + fluid restriction

Question 32

Symptomatic HYPERvolemic hyponatremia treatment

Answer 32

Furosemide + 3% NaCl

Question 33

Asymptomatic HYPERvolemic hyponatremia treatment

Answer 33

Furosemide

Question 34

Total body water calculation (Males)

Answer 34

TBW = 0.6 x wt(kg) = __ L

Question 35

Total body water calculation (Females)

Answer 35

TBW = 0.5 x wt(kg) = __ L

Question 36

Treatment for acute symptomatic hyponatremia

Answer 36

3% NaCl

Question 37

How much should you increase Na in acute hyponatremia?

Answer 37

1-2 mEq/L/hr

Question 38

Free water deficit calculation

Answer 38

TBW x ((Serum Na / 140) - 1)