WGU PATHOPHYSIOLOGY SECTION 1 EXAM AND
REVIEW 87 QUESTIONS WITH VERIFIED ANSWERS
2025/2026
135-145 - CORRECT ANSWER Sodium
3.5-5.0 - CORRECT ANSWER Potassium
20-28 - CORRECT ANSWER CO2
7-16 - CORRECT ANSWER Anion Gap
H+ (hydrogen) - CORRECT ANSWER Ph is the concentration of what in the blood?
Acidic - CORRECT ANSWER A PH of <7.35 is considered acidic or alkalotic?
Alkalotic - CORRECT ANSWER pH > 7.45 is considered acidotic or alkalotic?
The lungs - CORRECT ANSWER Which organ uses PaCO2 to regulate PH?
The kidneys - CORRECT ANSWER Which organ uses HCO3 (bicarb) to regulate ph.?
, Decreasing (the decrease in respirations causes cO2 retention) - CORRECT
ANSWER Does decreasing respirations and depth or increasing respirations and
depth cause acidosis
High cO2 causes acidosis - CORRECT ANSWER Does high cO2 or low cO2 cause
acidosis?
Alkalosis (you will breathe off more cO2) - CORRECT ANSWER Increasing
respiratory rate and depth will cause acidosis or alkalosis
Isotonic fluid - CORRECT ANSWER This solution Is the same tonicity as blood, and
does not cause fluid shifts. An example is NS
Hypotonic solution - CORRECT ANSWER This solution has More water than blood
and causes a fluid shift from ECF to ICF, usually for dehydration. An example is 1/2
NS.
Hypertonic solution - CORRECT ANSWER This solution has More particles than
blood, causes fluid shift from ICF to ECF. Can reduce cell swelling (think cerebral
edema 3%NS)
Constricts blood vessels and increases blood pressure - CORRECT ANSWER
Increase in angiotensin II does what?
Reabsorb more sodium and water - CORRECT ANSWER ADH and aldosterone
causes the kidney to do what?
REVIEW 87 QUESTIONS WITH VERIFIED ANSWERS
2025/2026
135-145 - CORRECT ANSWER Sodium
3.5-5.0 - CORRECT ANSWER Potassium
20-28 - CORRECT ANSWER CO2
7-16 - CORRECT ANSWER Anion Gap
H+ (hydrogen) - CORRECT ANSWER Ph is the concentration of what in the blood?
Acidic - CORRECT ANSWER A PH of <7.35 is considered acidic or alkalotic?
Alkalotic - CORRECT ANSWER pH > 7.45 is considered acidotic or alkalotic?
The lungs - CORRECT ANSWER Which organ uses PaCO2 to regulate PH?
The kidneys - CORRECT ANSWER Which organ uses HCO3 (bicarb) to regulate ph.?
, Decreasing (the decrease in respirations causes cO2 retention) - CORRECT
ANSWER Does decreasing respirations and depth or increasing respirations and
depth cause acidosis
High cO2 causes acidosis - CORRECT ANSWER Does high cO2 or low cO2 cause
acidosis?
Alkalosis (you will breathe off more cO2) - CORRECT ANSWER Increasing
respiratory rate and depth will cause acidosis or alkalosis
Isotonic fluid - CORRECT ANSWER This solution Is the same tonicity as blood, and
does not cause fluid shifts. An example is NS
Hypotonic solution - CORRECT ANSWER This solution has More water than blood
and causes a fluid shift from ECF to ICF, usually for dehydration. An example is 1/2
NS.
Hypertonic solution - CORRECT ANSWER This solution has More particles than
blood, causes fluid shift from ICF to ECF. Can reduce cell swelling (think cerebral
edema 3%NS)
Constricts blood vessels and increases blood pressure - CORRECT ANSWER
Increase in angiotensin II does what?
Reabsorb more sodium and water - CORRECT ANSWER ADH and aldosterone
causes the kidney to do what?
