PH Flashcards

1
Q

homeostatic ph levels in body fluids depends on..

3 things

A
  1. Buffer systems that bind H+a. protein buffer
    b. bicarbonate buffer system (most important
    c. phosphate buffer system
  2. exhaling c02
  3. kidney excretion of h+
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2
Q

Respiratory alkalosis

A

decreased pc02, increased ph

cause hyperventilation

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3
Q

metabolic alkalosis

A

increased hc03-, increased ph

cause: vomiting or taking alkaline drugs such as mylanta

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4
Q

respiratory acidosis

A

increased pc02, decreased ph.

cause: hypoventilation (holding breath)

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5
Q

metabolic acidosis

A

decreased hc03-, decreased ph.

cause: loss of bicarbonate ions or failure of the kidney to excrete H+

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6
Q

respiratory acidosis/alkalosis

A

disorder of blood pc02

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7
Q

metabolic acidosis/alkalosis

A

disorder of bicarbonate ion (HC03-) concentration

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8
Q

Pulmonary blood flow

A

Red: pulmonary veins carry oxygenated blood to the heart

big blue: carry deoxygenated blood away from the heart to the lungs.

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9
Q

in systemic circulation

A

Blue: veins (deox)
red: arteries: oxy

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10
Q

Costal breathing

A

shallow chest breathing using external intercostal muscles

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11
Q

eupnea

A

normal quiet breathing

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12
Q

hypernea

A

forced breathing, ccessory muscles assist with inhalation. exhalation involves internal intercostals and abdominal muscles.

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13
Q

tachypea

A

rapid breathing

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14
Q

cheyne

A

breaths before death

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15
Q

anoix

A

w/o oxygent

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16
Q

hemoptysis

A

spitting up blood from the respiratory tract

17
Q

pneumonia

A

acute infection of alveoli (most common infectious cause of death

18
Q

pulmonary embolism

A

blockage of branch of pulmonary artery resulting in interruption of blood flow to a group of lobules and/or alveoli

19
Q

Rales

A

rattling sound in lungs

20
Q

rhinitis

A

inflammed mucous membrane in the nose

21
Q

tuberculosis

A

communicable infectious respiratory disease. 1 in 3 are infected worldwide. airborne

22
Q

pulmonary edema

A

abnormal accumulation of interstitial fluid in alveoli

23
Q

hypoxia

A

deficiency of oxygen at the tissue level

24
Q

4 types of hypoxia

hypoxic hypoxia

A

low p02 in arterila blood

high altitude, fluid in lungs, airway obstruction

25
Q

anemic hypoxia

A

insufficent hemoglobin

hemorrhage, anemia, carbon monoixide poisoning

26
Q

ischemic hypoxia

A

blood flow to tissue is reduced while p02 and oxygemoglbin levels are normal. blockage in blood vessels

27
Q

histotoxic hypoxia

A

toxic agent blocks uuse of 02 by tissue

cyanide poisining