MCCN 205 TEST PAPER 2025/2026 QUESTIONS WITH
SOLUTIONS RATED A+
✔✔lab studies used to detect for imbalances with fluids - ✔✔CBC serum electrolytes
and urin pH/specific gravity
✔✔one liter is equal to - ✔✔2 pounds
✔✔hypovolemia - ✔✔decreased blood circulating- from decreased water and
electrolytes.
decreased HGB and HCT
altered electrolytes
✔✔dehydration - ✔✔increased HGB and HCT
✔✔hyponatremia/ hyper - ✔✔sodium
✔✔hypokalemia/hyper - ✔✔potassium
✔✔hypocalcemia - ✔✔calcium
✔✔hypomagnesemia - ✔✔magnesium
✔✔hypophophatemia - ✔✔phosporus
✔✔general considerations for electrolyte imbalances - ✔✔many have GI and
neuromuscular indications
✔✔homeostatic regulators - ✔✔plasma buffer system, respiratory mechanisms, renal
mechanisms
✔✔ABG- normals - ✔✔arterial blood gas. pH- 7.35-7.45, pCO2 35-45, HCO3 22-26
✔✔nasal canula - ✔✔allows eating and talking about 24-40%
✔✔simple mask - ✔✔high oxygen, 30-60%, makes people anxious
✔✔partial rebreather mask - ✔✔reservoir bad collects exhaled air and mixes with 100%
oxygen
✔✔nonrebreather mask - ✔✔80-90% oxygen. highest mask oxygen level
✔✔venturi mask - ✔✔most control over amount of oxygen 24-55%
SOLUTIONS RATED A+
✔✔lab studies used to detect for imbalances with fluids - ✔✔CBC serum electrolytes
and urin pH/specific gravity
✔✔one liter is equal to - ✔✔2 pounds
✔✔hypovolemia - ✔✔decreased blood circulating- from decreased water and
electrolytes.
decreased HGB and HCT
altered electrolytes
✔✔dehydration - ✔✔increased HGB and HCT
✔✔hyponatremia/ hyper - ✔✔sodium
✔✔hypokalemia/hyper - ✔✔potassium
✔✔hypocalcemia - ✔✔calcium
✔✔hypomagnesemia - ✔✔magnesium
✔✔hypophophatemia - ✔✔phosporus
✔✔general considerations for electrolyte imbalances - ✔✔many have GI and
neuromuscular indications
✔✔homeostatic regulators - ✔✔plasma buffer system, respiratory mechanisms, renal
mechanisms
✔✔ABG- normals - ✔✔arterial blood gas. pH- 7.35-7.45, pCO2 35-45, HCO3 22-26
✔✔nasal canula - ✔✔allows eating and talking about 24-40%
✔✔simple mask - ✔✔high oxygen, 30-60%, makes people anxious
✔✔partial rebreather mask - ✔✔reservoir bad collects exhaled air and mixes with 100%
oxygen
✔✔nonrebreather mask - ✔✔80-90% oxygen. highest mask oxygen level
✔✔venturi mask - ✔✔most control over amount of oxygen 24-55%
