N244 WEEK 1 EXAM QUESTIONS WITH
100% ACCURATE ANSWERS
What measures oxygenation in the body?
chemoreceptors
Sa O2>60
CO2 <70
What is lung compliance?
measure the elasticityy of the lungs and thorax
What is airway resistance?
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?
acidity of blood
What does shunt mean?
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?
take the patient Pa O2 and divide by FiO2.
What is hypoxia?
decrease tissue profussion.
What is hypoxemia?
decreased in arterial blood transportation
, Think RAT for hypoxia?
*restlessness
*agitation, anxiety
*tachycardia, tachypnea
What is acute respiratory failure characterized by?
PH <7.35
PCO2>50
PaO2<60
Risk factors for ARF are?
*increased age
*comorbidities
*sepsis/shock
Imparired ventilation =impaired gas exchange=V/Q ventalation perfusion
mismatch=obstruction obstruction
--
ARF type one is?
intrapulmonary problem
Normal carbon dioxide
Lower airways and alvoli
ARF type two is?
extrapulmonary pleura
*brain
*spinal cord
*upper airway
Signs of hypoxemia are?
100% ACCURATE ANSWERS
What measures oxygenation in the body?
chemoreceptors
Sa O2>60
CO2 <70
What is lung compliance?
measure the elasticityy of the lungs and thorax
What is airway resistance?
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?
acidity of blood
What does shunt mean?
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?
take the patient Pa O2 and divide by FiO2.
What is hypoxia?
decrease tissue profussion.
What is hypoxemia?
decreased in arterial blood transportation
, Think RAT for hypoxia?
*restlessness
*agitation, anxiety
*tachycardia, tachypnea
What is acute respiratory failure characterized by?
PH <7.35
PCO2>50
PaO2<60
Risk factors for ARF are?
*increased age
*comorbidities
*sepsis/shock
Imparired ventilation =impaired gas exchange=V/Q ventalation perfusion
mismatch=obstruction obstruction
--
ARF type one is?
intrapulmonary problem
Normal carbon dioxide
Lower airways and alvoli
ARF type two is?
extrapulmonary pleura
*brain
*spinal cord
*upper airway
Signs of hypoxemia are?
