Acid Base Balance Flashcards

1
Q

what does acid base balance maintain

A

homeostasis

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2
Q

what is the definition of acid base balance

A

process of regulating ph, bicarb concentration, and partial pressure of co2 of body fluids

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3
Q

what is bicarb

A

base
takes up acid to create balance

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4
Q

what is acid base balance measured by

A

ph

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5
Q

acids are constantly…

A

being produced
co2 and H+

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6
Q

examples of acid excretion

A

exhalation and urination

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7
Q

what usually causes acid base imbalance

A

underlying condition

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8
Q

chronic conditions that cause acid base imbalance

A

copd- chronic resp acidosis
kidney disease- chronic metabolic acidosis

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9
Q

how does the body maintain optimal acid-base balance

A

acid excretion keeps up with production
buffers- HCo3- keeps up with acid production

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10
Q

what is respiratory acidosis

A

too much carbonic acid (co2)
loss of base

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11
Q

conditions that can cause resp acidosis

A

copd
asthma
narcotic overdose
pneumonia
pulmonary edema
gullian barre

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12
Q

what is metabolic acidosis

A

metabolic acid (H+) retention/ingestion or bicarb HCo3 loss

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13
Q

conditions that can cause metabolic acidosis

A

diabetic ketoacidosis
diarhhea
starvation ketoacidosis
sepsis
renal disease
thyroid storm
oliuria

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14
Q

what is respiratry alkalossi

A

co2 loss

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15
Q

what are some conditions that cause resp alkalosis

A

hyperventilation
anxiety
pain
hypoxic
head injury

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16
Q

what is metabolic alkalosis

A

bicarb excess or H+ loss

17
Q

conditions that can cause metabolic alkalosis

A

ng tubes
vomiting
antacids
diuretics

18
Q

what physiological consequences occur when compensatory mechanisms fail

A

altered cell fxn
acidosis: decreased LOC quickly
alkalosis: alters LOC and other neuro manifestations: may cause dysrhythmias

19
Q

what history would you take

A

vomiting/diarhhea
drugs
alc
keto diet
losing wt
meds/supplements
physical assessment (resp and renal fx)

20
Q

who is at risk

A

very young and very old

21
Q

what is normal ph

A

7.35-7.45

22
Q

what is normal paco2

A

35-45

23
Q

what is normal hco3

A

22-26

24
Q

treatment strategies always start by treating ….. causing disturbance

A

underlying

25
Q

problems caused by an underlying resp condition require

A

resp support

26
Q

problems caused by an underlying metabolic condition require

A

fluid and electrolyte support

27
Q

interventions often include managing a …. disturbance as well

A

fluid and electrolyte

28
Q
A