Potassium Flashcards

(13 cards)

1
Q

Hypokalemia

EKG changes

A
  • flattened T-wave
  • presence of U-wave
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2
Q

Hyperkalemia

EKG changes

A
  • widened QRS
  • peaked T-waves
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3
Q

Tx of emergent hyperkalemia

A

calcium IV

used when QRS gets too wide

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4
Q

Aldosterone effects on K+

A

promotes secretion

in principle cells in collecting duct

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5
Q

Helps reabsorb K+ in severe hypokalemia

A

α-intercalated cell

in collecting duct

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6
Q

Leg weakness in dialysis patients

what to think

A

hyperkalemia

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7
Q

U-waves

A

hypokalemia

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8
Q

Flattened T-waves

A

hypokalemia

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9
Q

Widened QRS

A

hyperkalemia

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10
Q

Pointed T-waves

A

hyperkalemia

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11
Q

Hypomagnesemia

in turn causes

A

hypokalemia

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12
Q

Tx of hypokalemia

A

emergnet replacement

replace stores

check for hypomagnesemia

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13
Q

Tx of hyperkalemia

A

insulin/dextrose/sodium bicarb

diuretics

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