RESPIRATORY CRITICAL CARE EXAM QUESTIONS WITH VERIFIED ANSWERS. A+ GRADE 2025/2026.

RESPIRATORY CRITICAL CARE EXAM
QUESTIONS WITH VERIFIED
ANSWERS. A+ GRADE 2025/2026.




Involuntary control of resp rate, resp depth, & heart rate & BP - ANS Medulla Oblongata


Allows communication between the two hemispheres of the brain - ANS Pons


Allows voluntary mechanism to control respiration (ex- yoga and meditation) - ANS Motor
Cortex


Signals resp. muscles to breathe - ANS Stretch receptors


Detect decreases CO2 & O2 (sends message to medulla) - ANS Chemoreceptors


Breathing in increases -- pressure - ANS Positive


Breathing out increases -- pressure - ANS Negative


The amount of air reaching the alveoli is known as - ANS Ventilation


Exchange of a gas across a membrane - ANS Diffusion

1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED

, The amount of blood reaching the alveoli is known as - ANS Perfusion


What is the ratio of ventilation/perfusion? - ANS 1:1


If the upper airway is obstructed, what sound will you hear? - ANS Stridor


Upper airway obstructions are usually the result of -- - ANS Foreign body obstruction


If the lower airway is obstructed, what sound will you hear? - ANS Wheezes
Crackles
Pleural rub
Absent breath sounds


Normal hemoglobin - ANS 12-18


Normal hematocrit - ANS 45


Normal PAO2 - ANS 80-100


Normal CO2 - ANS 35-45


Normal HCO3 (bicarb) - ANS 22-28


BNP results - ANS ▪ 100 or less is normal
▪ 100-300 mild
▪ 300-600 moderate
▪ 600-900 is severe

2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED