a chlorine crisis is ghetto 🙄 Flashcards

1
Q

what is the normal pH range for blood in the human body?

A

7.35 - 7.45

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2
Q

what happens if the blood’s pH falls below 7.35?

A

acidosis.

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3
Q

what happens if the blood’s pH rises above 7.45?

A

alkalosis.

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4
Q

what is the bicarbonate buffer system?

A

the bicarbonate buffer system helps maintain a stable blood pH by balancing hydrogen ions (H⁺) and bicarbonate ions (HCO₃⁻).

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5
Q

what is the chemical equation for the bicarbonate buffer system?

A

the chemical equation is:
CO₂ + H₂O ⇌ H₂CO₃ ⇌ H⁺ + HCO₃⁻

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6
Q

how does bicarbonate (HCO₃⁻) “soak up” excess H⁺ ions in the blood?

A

bicarbonate reacts with hydrogen ions (H⁺) to form carbonic acid (H₂CO₃), which then quickly dissociates into CO₂ and water, reducing acidity in the blood.

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7
Q

why is the bicarbonate buffer system reversible?

A

the bicarbonate buffer system is reversible because it can go in either direction to balance blood pH: bicarbonate absorbs H⁺ to reduce acidity or carbonic acid releases H⁺ to lower pH.

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8
Q

how does the bicarbonate buffer system help maintain a stable pH in the blood?

A

when the blood becomes too acidic (low pH), bicarbonate absorbs excess H⁺, forming carbonic acid. when the blood becomes too basic (high pH), carbonic acid releases H⁺ to increase acidity, balancing pH.

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9
Q

what role does carbon dioxide (CO₂) play in the bicarbonate buffer system?

A

CO₂ reacts with water to form carbonic acid (H₂CO₃). Increased CO₂ causes more carbonic acid to form, which releases H⁺ and lowers pH, making the blood more acidic.

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10
Q

how does the body get rid of excess CO₂ produced by the bicarbonate buffer system?

A

exhaling.

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11
Q

what would happen if there were not enough bicarbonate (HCO₃⁻) in the blood?

A

without enough bicarbonate, the blood would not be able to neutralize excess H⁺ ions effectively, leading to acidosis.

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12
Q

what effect does the bicarbonate buffer system have on blood when it’s too acidic?

A

when the blood is too acidic, bicarbonate reacts with hydrogen ions (H⁺) to form carbonic acid, which reduces the number of H⁺ ions, raising the pH and making the blood less acidic.

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13
Q

is carbonic acid a permanent step in the bicarbonate buffer system?

A

no. it is a “middle-man” step that always dissociates.

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14
Q

what is chloride?

A

chloride is a negatively charged ion (and electrolyte) that plays a role in acid-base balance, fluid regulation, and digestion.

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15
Q

what is the normal chloride range in the blood?

A

95-105 mEq/L

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16
Q

what regulates chloride levels in the body?

A

the kidneys, sweat, and gastrointestinal (gi) juices.

17
Q

what electrolytes have a significant relationship with chloride?

A

sodium, bicarbonate, and potassium.

18
Q

what is hypochloremia?

A

hypochloremia is a condition where chloride levels in the blood are lower than 95 mEq/L

19
Q

what are the main causes of hypochloremia?

A

gi losses (vomiting, suctioning, diarrhea, ileostomy).

diuretics (ex: thiazides).

burns. (fluid loss means chloride loss).

cystic fibrosis (loss of chloride in all that sweat).

fluid overload. (dilutes chloride)

metabolic alkalosis (blood wants high bicarbonate levels to absorb the excess H+, but bicarbonate has an inverse relationship with chloride).

20
Q

s / s of hypochloremia?

A

overlap with hyponatremia symptoms.

dehydration signs (increased heart rate, decreased blood pressure).

fever.

vomiting, diarrhea.

lethargy, confusion.

21
Q

what is the relationship between hypochloremia and bicarbonate?

A

they have an inverse relationship; when chloride is low, bicarbonate is high.

22
Q

interventions for hypochloremia?

A

l.o.s.s.:

l: look at sodium levels and signs of hyponatremia.

o: other labs (high bicarbonate and low potassium).

s: saline (normal 0.9% saline).

s: sources of chloride-rich foods (e.g., table salt, tomatoes, olives, seafood, processed meats).

23
Q

what iv fluid is given for hypochloremia?

A

normal 0.9% saline (to infuse sodium and chloride into the blood).

24
Q

what is hyperchloremia?

A

hyperchloremia is a condition where chloride levels in the blood are higher than 105 mEq/L

25
Q

what are the main causes of hyperchloremia?

A

excess sodium intake.

dehydration.

low bicarbonate levels (metabolic acidosis).

conn syndrome (high aldosterone).

medications (corticosteroids).

26
Q

what are the signs and symptoms of hyperchloremia?

A

overlap with hypernatremia symptoms:

fatigue.

restlessness, confusion.

increased reflexes and respirations.

seizures and coma.

extreme thirst.

dry mouth and skin.

27
Q

interventions for hyperchloremia?

A

h.i.g.h. c.l.:

h: hold sodium chloride infusions and restrict sodium-rich foods.

i: instead use lactated ringers (lr).

c: collect intake and output (i&o), daily weights, and vital signs.

l: labs to monitor chloride, sodium, bicarbonate, and potassium levels.

28
Q

why are lactated ringers used for hyperchloremia?

A

lr contains lactate, which converts to bicarbonate in the body, lowering chloride levels.

29
Q

how does sodium affect chloride levels?

A

sodium and chloride levels usually rise and fall together.

30
Q

how does bicarbonate affect chloride levels?

A

they have an inverse relationship; when one increases, the other decreases.

31
Q

what is an electrolyte?

A

a salt, acid, or base that dissolves into cations or anions in water to produce a solution that conducts electricity due to the ions carrying positive or negative electrical charges.

32
Q

what is metabolic alkalosis?

A

a condition where the blood becomes too alkaline due to excess bicarbonate or loss of acid.

33
Q

what is mEq/L?

A

so mEq/L is a unit of measurement that tells how many electrically charged ions are in a liter of a solution.

34
Q

what does the “equivalent” part mean in mEq/L?

A

the “equivalent” part stems from how many ions would be needed to replace / have the same chemical effect as one mole of H+ or one mole of OH-.

35
Q

what does it mean for chloride to have a “significant relationship” with other electrolytes?

A

chloride is said to have a “significant relation” with other electrolytes due to the interconnected nature of these ions in maintaining electrical neutrality, fluid balance, and acid-base regulation.

36
Q

what is thiazide?

A

commonly prescribed diuretics used to manage high blood pressure and fluid retention. they work by reducing sodium and water retention in the kidneys, leading to increased urine output.

37
Q

what is a diuretic?

A

a type of medication that promotes the increased production of urine, which helps the body get rid of excess salt (sodium) and water.

38
Q
A