UAB NUR 315 Pathophysiology Test 2 UPDATED ACTUAL Exam Questions and CORRECT Answers

UAB NUR 315 Pathophysiology Test 2
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What ion is most precisely regulated in the ECF? - CORRECT ANSWER - Hydrogen



Chemoreceptors - CORRECT ANSWER - in blood vessels
respond to CO2 in blood


Where is the respiratory center located? - CORRECT ANSWER - medulla



The stimulates the respiratory center in the brain? - CORRECT ANSWER - CO2
accumulation in the blood


What is the major stimulus for inhalation? - CORRECT ANSWER - CO2 concentration in
the blood (hypercapnia)


What are arterial blood gases? - CORRECT ANSWER - the concentration of O2 and CO2
in the bloodstream


Is carbon dioxide an acid or a base? - CORRECT ANSWER - acid



Is bicarbonate (HCO3) an acid or a base? - CORRECT ANSWER - base



PaO2 - CORRECT ANSWER - the pressure of oxygen in the arterial blood (90 to 100
mm Hg)


PaCO2 - CORRECT ANSWER - the pressure of carbon dioxide in arterial blood (35 to 45
mm Hg)

, HCO3 - CORRECT ANSWER - amount of bicarbonate in the blood
22-26 mEq/L


Acid - CORRECT ANSWER - a substance that dissolves in water to release a hydrogen
ion. (H+)
hydrogen donor
end product or by product
have to get rid of hydrogen


normal pH levels - CORRECT ANSWER - 7.35-7.45



Base - CORRECT ANSWER - a negatively charged particle looking to associate with a
hydrogen ion
also known as an alkali
hydrogen acceptor
can either be conserved or excreted by the kidneys depending on the amount of bicarb and the
pH of the blood


Blood pH - CORRECT ANSWER - refers to the measure of acidity or alkalinity of the
blood


What is important to maintain a normal blood pH? - CORRECT ANSWER - all cells in
the body need to have a blood pH in the normal range for optimal function


What is blood pH regulated by? - CORRECT ANSWER - lungs and kidneys
Each system compensates for the other
**It is never the same organ system that fixes itself always another system