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Electrolytes

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Increased osmolality is sensed by the ______ and ______ is secreted.

Back (Answer)

Hypothalamus, ADH

#2
Front (Question)

_____ follows _____ and _____ follows _____

Back (Answer)

H2O, Na+ Cl-, Na+

#3
Front (Question)

Osmolality definition

Back (Answer)

Concentration of solute (in millimoles) per kg solvent

#4
Front (Question)

What is the osmol gap?

Back (Answer)

Difference between measured osmolality and calculated osmolality

#5
Front (Question)

Increases in osmolality turn on the _____ mechanism.

Back (Answer)

Thirst

#6
Front (Question)

Osmolarity

Back (Answer)

Old term. mOsm/Liter. Not appropriate for urine specimens or serum with lipidemia, hyperproteinemia, and large amts of EtOH

#7
Front (Question)

Specimens fir testing osmolality

Back (Answer)

Serum or urine

#8
Front (Question)

If the pt has a serum osmolality»_space; _______ mOsm/kg then they have a poor prognosis.

Back (Answer)

40

#9
Front (Question)

An increased osmolality may indicate

Back (Answer)

Ingestion of poison, ethylene glycol, methanol or isopropanol

#10
Front (Question)

There is usually ______ mEq/L of anions or cations

Back (Answer)

154

#11
Front (Question)

mEq/L is equivalent to:

Back (Answer)

mmol/L

#12
Front (Question)

Anion gap reference range

Back (Answer)

10-17 mEq/L

#13
Front (Question)

The formula for calculating anion gap is…

Back (Answer)

[Na + K] - [Cl + HCO3]

#14
Front (Question)

Electrolytes maintain… (Three things)

Back (Answer)

pH Osmotic Pressure Proper heart and muscle function

#15
Front (Question)

Electrolytes act in _______ reactions. Electrolytes act as _______ in enzyme reactions

Back (Answer)

Oxidation Reduction Cofactors in enzyme reactions

#16
Front (Question)

These three things may lead to abnormal electrolyte loss

Back (Answer)

Vomiting Diarrhea Perspiration

#17
Front (Question)

Major cations in ECF

Back (Answer)

Na+ and K+

#18
Front (Question)

Major anions in ECF

Back (Answer)

Cl- HCO3-

#19
Front (Question)

Most abundant mineral in the body

Back (Answer)

Calcium

#20
Front (Question)

40 percent of plasma or serum calcium is bound to

Back (Answer)

Plasma proteins (esp albumin)

#21
Front (Question)

98 percent of body’s calcium is in

Back (Answer)

Bones

#22
Front (Question)

45 percent of plasma/serum calcium is

Back (Answer)

Free or ionized

#23
Front (Question)

Only _____ calcium is physiologically active.

Back (Answer)

Ionized

#24
Front (Question)

There is ______ ionized calcium at acid pH.

Back (Answer)

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