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RTH 102 Chem > PPT2 pH > Flashcards

PPT2 pH Flashcards

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0
Q

The two primary organs associated with pH balance are?

A

Lungs and kidneys

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1
Q

Acid and base status of blood is known as?

A

pH

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2
Q

The ratio of bicarbonate to carbonic acid is?

A

20:1

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3
Q

The measure of hydrogen ions in the blood plasma is called?

A

pH

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4
Q

pH ranges from ___-___

A

0-14

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5
Q

Water is measure with A pH of 7 and is considered?

A

Neutral

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6
Q

pH is measured in the ____ ______

A

Blood plasma

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7
Q

Extra cellular fluid is measured with a pH of?

A

7.40

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8
Q

Intracellular fluid is measured with a pH of?

A

7.32

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9
Q

Intracellular fluid is considered more _______ than extra cellular fluid which is more _________.

A

Intracellular is more acidic

Extra cellular more basic

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10
Q

Variances in pH can alter enzyme activity, nerve and tissue function, especially in the ________

A

Heart

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11
Q

Variances in pH can alter enzyme activity, _______ and_______ function, especially in the heart

A

Nerve and tissue

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12
Q

Variances in pH can alter ________________, nerve and tissue function, especially in the heart

A

Enzyme activity

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13
Q

Substance that releases a H+

A

Acid

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14
Q

Substance that gains an H+

A

Base

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15
Q

Bodies goal is to maintain acid/base ______________

A

Homeostasis

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16
Q

The body has two ways of dealing with acid homeostasis, acid excretion and _______ _________.

A

Acid buffering

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17
Q

The body has two ways of dealing with acid homeostasis, ______ _______ and acid buffering.

A

Acid excretion

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18
Q

The _________ are the primary excretory organ

A

Lungs

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19
Q

pH meter measures H+ __________ NOT concentration

A

Activity

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20
Q

Mild acidemia __-___ pH and may not require therapy

A

7.35-7.30

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21
Q

Moderate acidemia ranges from ____-____pH and requires immediate therapy

A

7.30-7.20

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22
Q

Severe acidemia levels ______pH and requires aggressive therapy

A

<7.20

23
Q

Mild alkalemia range ___-___pH which may not require therapy

A

7.45-7.50

24
Q

Moderate alkalemia ranges from __-__ and requires immediate therapy

A

7.50-7.55

25
Q

Severe alkalemia ranges ranges ___-___pH and requires aggressive therapy.

A

> 7.55

26
Q

The lungs are responsible for excretion of _________mEq/L per day

A

13,000mEq/L

27
Q

The kidneys are required for excretion of _________mEq/L per day

A

50mEq/L

28
Q

The kidneys excrete ____________ that can not be converted to gas

A

Fixed acids

29
Q

The lungs excrete ________ which is a volatile acid and can be converted from liquid to gas.

A

CO2

30
Q

A volatile acid is considered _______

A

Those that can be converted from liquid to gas

31
Q

Carbonic acid (H2CO2) is removed as ________

A

CO2

32
Q

__________ is converted into CO2 to be excreted from the lungs

A

Carbonic acid (H2CO2)

33
Q

The minimization of pH changes by soaking up acid or neutralizing bases is known as?

A

Buffering

34
Q

A good buffer is made up of a ___________ buffer pair

A

Conjugate

35
Q

HCL——->(H+) + (Cl-) is an example of?

A

Dissociation

36
Q

In the degree of dissociation, a strong acid will have a _________ of dissociation

A

High degree (many free H+)

37
Q

In the degree of dissociation, a _____ acid will have a high degree of dissociation

A

Strong

38
Q

In the degree of dissociation, a weak acid will have a _________ of dissociation

A

Low degree of dissociation. (few free H+)

39
Q

In the degree of dissociation, a ______ acid will have a low degree of dissociation

A

Weak acid

40
Q

The conversion of strong (acids or bases) into weak (acids or bases) is called?

A

Buffering system

41
Q

Buffer systems minimize pH changes but do not ________ them

A

Prevent

42
Q

The two types of buffering systems are

A

Bicarbonate and non bicarbonate systems

43
Q

A bicarbonate system is made up of a __________ and a salt of a conjugate base.

A

Weak acid

44
Q

In bicarbonate systems, if a strong acid is added the buffer pair will change into a ________ acid and a salt

A

Weak

45
Q

NaHCO3

Is considered and example of what type of buffering system?

A

Bicarbonate

46
Q

In bicarbonate systems, if a strong base is added to the system then the buffer pair will change into a _______ and water

A

Weak base

47
Q

All of the following are considered part of the _____________ system, hemoglobin, organic phosphates, inorganic phosphates, and plasma proteins.

A

Non bicarbonate systems

48
Q

The statement “the product of the concentration on the right equals the concentration of the products on the left”

A

The law of mass action

49
Q

KA equals the….

A

Equilibrium constant

50
Q

The ratio of carbonate to bicarbonate is

A

1:20

51
Q

All of the following are considered part of the non bicarbonate system, hemoglobin, organic phosphates, inorganic phosphates, and __________

A

Plasma proteins

52
Q

All of the following are considered part of the non bicarbonate system, hemoglobin, organic phosphates, _______________ and plasma proteins.

A

Inorganic phosphates

53
Q

All of the following are considered part of the non bicarbonate system, hemoglobin, _____________, inorganic phosphates, and plasma proteins.

A

Organic phosphates

54
Q

All of the following are considered part of the non bicarbonate system, _____________, organic phosphates, inorganic phosphates, and plasma proteins.

A

Hemoglobin

55
Q

The ratio of carbonate to bicarbonate is

A

1:20

RTH 102 Chem (5 decks)

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