L1-4: Fluids and Electrolyte Values to Know

Question 1

Sensible vs insensible fluid loss

Answer 1

Sensible: 1-1.5L/day
Insensible: <1L/day

Question 2

Isotonic range

Answer 2

275-290mOsm/L

Question 3

Hypotonic range

Answer 3

<275mOsm/L

Question 4

Hypertonic Range

Answer 4

> 290 mOsmol/L

Question 5

Clinical estimate MIVF for adults

Answer 5

30-40 mL/kg/day

Question 6

0.9% sodium mEq/L

Answer 6

154 mEq/L

Question 7

0.45% sodium mEq/L

Answer 7

77 mEq/L

Question 8

Two ranges of Albumin

Answer 8

5% - 250-500mL vial - more concentrated
25% - 50mL or 100mL bottle

Question 9

Low hemoglobin is classified as

Answer 9

<7-8 g/dL

Question 10

1 unit of RBCs increases hemoglobin by

Answer 10

1g/dL

Question 11

Most common MIVF

Answer 11

D5W + 1/2 NS + 20 mEq KCl/L

Question 12

Decreased urine output

Answer 12

<0.5 mL/kg/hr

Question 13

Sodium range

Answer 13

135-145 mEq/L

Question 14

Osmolality range

Answer 14

275-290 mOsm/L

Question 15

Renal causes of hypovolemic hypotonic hyponatremia are what range

Answer 15

Urine Na+ > 20 mEq/L
Lower is non renal

Question 16

Avoid rise in serum sodium: or no more than : /hr

Answer 16

Avoid above 0.5 mEq/L/hr OR no more than 8-12 mEq/L/day

Question 17

Risk vs Benefit with sodium: rule of 8

Answer 17

Replace half of sodium deficit in 8hrs, then remaining deficit within 8-16 hrs

Question 18

Acute Symptomatic Hyponatremia Monitoring - how often to check a patient

Answer 18

Every 6-8 hrs

Question 19

Monitoring status during hypernatremia

Answer 19

Check q3-6hrs over first 24hrs
I/O q 8-12hrs

Question 20

Potassium levels in body

Answer 20

3.5-5 mEq/L

Question 21

Hypokalemia below _ requires treatment

Answer 21

3mEq/L

Question 22

Infusion rate of K+ without cardiac monitoring

Answer 22

10mEq/hr
DO NOT EXCEED THIS NUMBER

Question 23

Hyperkalemia

Answer 23

K+ > 5.5 mEq/L
Mild (5.5-6)
Moderate (6.1-6.9)
Severe (>7)

Question 24

Magnesium range

Answer 24

1.5-2.5mg/dL

Question 25

Calcium Range

Answer 25

8.5-10.5mg/dL

Question 26

Phosphorous Range

Answer 26

2.5-4.5 mg/dL

Question 27

Hypophosphotemia

Answer 27

Mild/Moderate - 1-2mg/dL