N244 RESPIRATORY QUESTIONS AND
ANSWERS 2025
What measures oxygenation in the body? - CORRECT ANSWER-chemoreceptors
Sa O2>60
CO2 <70
What is lung compliance? - CORRECT ANSWER-measure the elasticityy of the lungs
and thorax
What is airway resistance? - CORRECT ANSWER-opposition of gas flow in the
airways. Mainly due to the diameter of the airways.
***small changes in diameter produce large changes in resistance.
The amount of carbon dioxide in plasma dictates the? - CORRECT ANSWER-acidity of
blood
What does shunt mean? - CORRECT ANSWER-it means the amount of blood
circulating through the lungs that does not participate in gas exchange.
Normal shunt is
To estimate a patients shunt how do we calculate? - CORRECT ANSWER-take the
patient Pa O2 and divide by FiO2.
What is hypoxia? - CORRECT ANSWER-decrease tissue profussion.
What is hypoxemia? - CORRECT ANSWER-decreased in arterial blood transportation
Think RAT for hypoxia? - CORRECT ANSWER-*restlessness
*agitation, anxiety
*tachycardia, tachypnea
What is acute respiratory failure characterized by? - CORRECT ANSWER-PH <7.35
PCO2>50
PaO2<60
Risk factors for ARF are? - CORRECT ANSWER-*increased age
*comorbidities
*sepsis/shock
, Imparired ventilation =impaired gas exchange=V/Q ventalation perfusion
mismatch=obstruction obstruction - CORRECT ANSWER---
ARF type one is? - CORRECT ANSWER-intrapulmonary problem
Normal carbon dioxide
Lower airways and alvoli
ARF type two is? - CORRECT ANSWER-extrapulmonary pleura
*brain
*spinal cord
*upper airway
Signs of hypoxemia are? - CORRECT ANSWER-restlessness
agitation
confusion
Signs of hypercapnia are? - CORRECT ANSWER-*HA
*blurred vision
*confusion
*seizures
Signs of renal involvement will be? - CORRECT ANSWER-*decreased urine output and
edema
Signs of GI involvement will be? - CORRECT ANSWER-*decreased bowel sounds
*anorexia
*n/v
Signs of skin will be? - CORRECT ANSWER-*pallor
*cyanosis
**Early signs and symptoms of ARF are? - CORRECT ANSWER-*****restlessness
****agitaion
Late signs will be? - CORRECT ANSWER-confusion
cyanosis
ANSWERS 2025
What measures oxygenation in the body? - CORRECT ANSWER-chemoreceptors
Sa O2>60
CO2 <70
What is lung compliance? - CORRECT ANSWER-measure the elasticityy of the lungs
and thorax
What is airway resistance? - CORRECT ANSWER-opposition of gas flow in the
airways. Mainly due to the diameter of the airways.
***small changes in diameter produce large changes in resistance.
The amount of carbon dioxide in plasma dictates the? - CORRECT ANSWER-acidity of
blood
What does shunt mean? - CORRECT ANSWER-it means the amount of blood
circulating through the lungs that does not participate in gas exchange.
Normal shunt is
To estimate a patients shunt how do we calculate? - CORRECT ANSWER-take the
patient Pa O2 and divide by FiO2.
What is hypoxia? - CORRECT ANSWER-decrease tissue profussion.
What is hypoxemia? - CORRECT ANSWER-decreased in arterial blood transportation
Think RAT for hypoxia? - CORRECT ANSWER-*restlessness
*agitation, anxiety
*tachycardia, tachypnea
What is acute respiratory failure characterized by? - CORRECT ANSWER-PH <7.35
PCO2>50
PaO2<60
Risk factors for ARF are? - CORRECT ANSWER-*increased age
*comorbidities
*sepsis/shock
, Imparired ventilation =impaired gas exchange=V/Q ventalation perfusion
mismatch=obstruction obstruction - CORRECT ANSWER---
ARF type one is? - CORRECT ANSWER-intrapulmonary problem
Normal carbon dioxide
Lower airways and alvoli
ARF type two is? - CORRECT ANSWER-extrapulmonary pleura
*brain
*spinal cord
*upper airway
Signs of hypoxemia are? - CORRECT ANSWER-restlessness
agitation
confusion
Signs of hypercapnia are? - CORRECT ANSWER-*HA
*blurred vision
*confusion
*seizures
Signs of renal involvement will be? - CORRECT ANSWER-*decreased urine output and
edema
Signs of GI involvement will be? - CORRECT ANSWER-*decreased bowel sounds
*anorexia
*n/v
Signs of skin will be? - CORRECT ANSWER-*pallor
*cyanosis
**Early signs and symptoms of ARF are? - CORRECT ANSWER-*****restlessness
****agitaion
Late signs will be? - CORRECT ANSWER-confusion
cyanosis
