acid-base balance Flashcards

(34 cards)

1
Q

acid base homeostasis

A

involves chemical physiologic processes responsible for the maintenance of the acidity of body fluids at levels of the whole individual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

acid base balance is

A

critical to homeostasis and body functions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

acid base balance has a narrow pH margin of

A

(7.35-7.45)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

acids release

A

hydrogen ions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

bades accept

A

hydrogen ions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

pH has an inverse relationship with

A

bicarbonate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

body produces

A

acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

blood pH levels for death

A

6-7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

blood pH levels for acidosis

A

7-7.35

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

blood pH levels for normal pH

A

7.35-7.45

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

blood pH levels for alkalosis

A

7.45-7.8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

blood pH levels for death of alkalosis

A

7.8-9

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

human blood pH is

A

7.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

acidic is

A

0-7.45

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

basic is

A

7.45-14

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

carbonic acid

A

carbon dioxide and H2O in lungs

17
Q

lactic acid

A

muscle/nonvolital can not be reduce to gas

18
Q

hydrochloric acid

19
Q

HCO3

A

nonvolatile acids/kidneys

20
Q

CO2

A

volatile/lungs

21
Q

normal pH

22
Q

buffers

A

maintain pH balance by binding or releasing hydrogen ions (H+)

23
Q

main buffer:

A

bicarbonate-carbonic buffer

24
Q

other buffers:

A

phosphate buffer system
protein
hemoglobin

25
buffers take
seconds to minutes
26
buffers are
first line of defense/very short
27
bicarbonate normal level:
24-28 mEq/L
28
carbonic normal level
1.2 mEq/L
29
ratio of bicarbonate (HCO3) to carbonic acid (H2Co3)
20:
30
levels in the body can
vary according to individual but pH is still maintained between 7.35-7.45
31
bicarbonate (HCO3) is
a weak base, pH changes slightly even when hydrogen ion acid combines with bicarbonate/kidneys
32
carbonate acid (H2CO3) is
a weak acid (produced when carbon dioxide dissolve in water). base added and combines with carbonic acid pH remains within normal range/lungs
33
maintaining balance: respiratory is the second line of defense, it
eliminates carbon dioxide ace increase of CO2 stimulate respiratory drive processes happen very quickly (minutes to hours)
34
maintaining balance: renal is the third line of defense, it
regulate bicarbonate levels- acidosis (excrete H ions (acid) and retain bicarbonate (base) alkalosis (excrete bicarb (bade) and retain H+ (acid) responsible for eliminating most metabolic (nonvolatile) acids takes longer to take effect (more reliable), slow and dependable, not break down to gas, takes days to weeks