3.3.3 Electrolytes (Potassium) Flashcards by Miguel Acosta

Q

Potassium is Major intracellular Cation

T or F

A

T

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Q

Potassium is greatly affected by hemolysis

T or F

A

T

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Q

Potassium

Normal: __________(serum) & __________ (plasma)

a. 3.5-5.1 mmol/L , 3.5-4.5 mmol/L
b. 3.5-4.5 mmol/L , 3.5-5.1 mmol/L

A

a

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Q

Panic value for Potassium?

a. ≤ 2.7; ≥ 6.1 mmol/L
b. ≤ 2.9; ≥ 6.3 mmol/L
c. ≤ 2.8; ≥ 6.2 mmol/L
d. ≤ 3.0; ≥ 6.4 mmol/L

A

c

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Q

Why potassium is higher in serum than plasma?

A

Clot formation, releases potassium (0.6 amount)

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Q

Method for Potassium

In ISE: the tip of the membrane is made out of ?

a. Glass
b. Valinomycin
c. Quartz

A

b

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Q

Method for Potassium

In flame photometry: what is the color?

a. Yellow
b. Violet
c. Red

A

b

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Q

Traditional colorimetric spectrophotometric method for potassium

a. Albanese-lein
b. Lockhead-purcell
c. Cotlove chloridometry

A

b

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Q

Cellular shift:

Alkalosis

a. Hypokalemia
b. Hyperkalemia

A

a

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Q

Cellular shift:

Acidosis

a. Hypokalemia
b. Hyperkalemia

A

b

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Q

Cellular shift:

Insulin overdose

a. Hypokalemia
b. Hyperkalemia

A

a

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Q

Cellular shift:

INflux potassium (Enters the cell)

a. Hypokalemia
b. Hyperkalemia

A

a

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Q

Cellular shift:

EFFlux potassium (Potassium ions is out from the cell)

a. Hypokalemia
b. Hyperkalemia

A

b

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Q

Cellular shift:

Decrease in plasma

a. Hypokalemia
b. Hyperkalemia

A

a

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Q

GI loss due to vomiting, laxatives and malabsorption syndrome

a. Hypokalemia
b. Hyperkalemia

A

a

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Q

Renal tubular Acidosis (Most notable)

a. Hypokalemia
b. Hyperkalemia

A

a

Q

Conn’s syndrome

a. Hypokalemia
b. Hyperkalemia

A

a

Q

Increase intake of Oral or IV potassium

a. Hypokalemia
b. Hyperkalemia

A

b

Q

Decrease renal excretion

a. Hypokalemia
b. Hyperkalemia

A

b

Q

Addison’s disease

a. Hypokalemia
b. Hyperkalemia

A

b

Q

Hemolysis

a. Hypokalemia
b. Hyperkalemia

A

b

Q

Thrombocytosis

a. Hypokalemia
b. Hyperkalemia

A

b

Q

K+ sparring diuretics

a. Hypokalemia
b. Hyperkalemia

A

b

Q

High pH is due to cellular shift between Potassium going in and hydrogen going out from the cell

T or F

A

T

Q

Insulin causes Acute entry of the potassium into the cells

T or F

A

T

Q

Renal tubular acidosis = Exchange of Potassium from plasma to kidney and hydrogen from kidney to plasma

T or F

A

T

This result to potassium excreting to urine

Q

Reasons for pseudohyperkalemia includes:

Hemoconcentration
Thrombocytosis

T or F

A

T

Q

Serum is not used for potassium test since?

A

Increases potassium due to clot formation