PH Flashcards
homeostatic ph levels in body fluids depends on..
3 things
- Buffer systems that bind H+a. protein buffer
b. bicarbonate buffer system (most important
c. phosphate buffer system - exhaling c02
- kidney excretion of h+
Respiratory alkalosis
decreased pc02, increased ph
cause hyperventilation
metabolic alkalosis
increased hc03-, increased ph
cause: vomiting or taking alkaline drugs such as mylanta
respiratory acidosis
increased pc02, decreased ph.
cause: hypoventilation (holding breath)
metabolic acidosis
decreased hc03-, decreased ph.
cause: loss of bicarbonate ions or failure of the kidney to excrete H+
respiratory acidosis/alkalosis
disorder of blood pc02
metabolic acidosis/alkalosis
disorder of bicarbonate ion (HC03-) concentration
Pulmonary blood flow
Red: pulmonary veins carry oxygenated blood to the heart
big blue: carry deoxygenated blood away from the heart to the lungs.
in systemic circulation
Blue: veins (deox)
red: arteries: oxy
Costal breathing
shallow chest breathing using external intercostal muscles
eupnea
normal quiet breathing
hypernea
forced breathing, ccessory muscles assist with inhalation. exhalation involves internal intercostals and abdominal muscles.
tachypea
rapid breathing
cheyne
breaths before death
anoix
w/o oxygent