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NU 737 > Potassium Elecrolytes > Flashcards

Potassium Elecrolytes Flashcards

1
Q

K Level

A

4.5 to 5.0 Extracellular level or
Plasma Potassium Consentration
6.5 : ER tX hyperkalemia
<2 Hypokalcemia
10 meq = 0.2 k

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2
Q

N-K ATpase

A

Sodium Potassium Pump

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3
Q

Metabolic Acidosis
W Acidemia and Bicarb

A

Inhibit K secretion
Result in Hyperkalemia

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4
Q

Metabolic Alkalosis

A

Result in HypoKalemia

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5
Q

Reason for Low K

A

Mg
Aldosterone
Decadron

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6
Q

Condtions Resulting in
HyperKalemia

A

*** Tumor Lysis Syndrome **
Result of tx tumors, Release intracellar to Extracellular Space
* Rhabdomyolysis
* Hemolytic Transfusion reactions
* Mesenteric Ischemia or infection
* Acute Renal Failure (due to Oliguric Renal Failure )

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7
Q

Pharmaclogic Agent
Cause
HyperKalemia

A

Digoxin (Dig over dose )
Succinylcholine (depolarize)

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8
Q

Pseudhyperkalemia

A

Due to Hemolysis level

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9
Q

Reason HypoKalemia
Medications?
Coolling ?

A

Albuterol, Epinephrone
Therapeutic Phase: Cooling (Hypo) Rewarmming (Hyper )

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10
Q

Cardiovascular Effects
HyperKalemia

A
  • Peak T wave
  • Loss of P wave (signing wave )
    Prolonged PR Interval
    QRS Prolonged
    VF and Asytole
    **K 6.5 - Normal EKG - ER treatmen **

= Prologned/Elevated

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11
Q

Cardiovascular Effects
Hypokalemia

A

**ST segment depression
Decrease T wave
Increase U wave
Ventricular Ecropy
Cardiac toxicity of Digitalis

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11
Q

Neuromuscular Effects
HyperKalemia

A

Paresthesia, weakness, Paralysis (spared Diaphragms
Reflexed : depressed or absent
CN NOT involved (if present has to be other reason

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11
Q

Metabolic Effects
Hyperkalmia

A

Decrease renal Ammoniagenesis (cause Metabolic Acidosis )

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12
Q

Neuromuscular Effects

A

Weakness, myalgias, muscel fatigue restless leg
Paralysis , including ventilatio muscels
Rhabdomyolysis : bed bound pt

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13
Q

Metabolic Effects
Hypokalemia

A

Glucose intoreransy
Polydipsia
Polyurea
Metabolic Alkalosis

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14
Q

Treatment
Hyperkalcemia

A

Insulin R 10 units and D5 amp for K 6.7
Calcium Gluconate 1 amp
Albuterl 20mg /4ml
Bicarb 150 can be used IV
**Potassium Elimination: ** Diuretics (lasix and Bumex)
K Binder(K exelate 15 to 30 grams)
Veltassa 8.4

Hemodialysis

NU 737 (8 decks)

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