RNC-NIC; RESPIRATORY EXAM QUESTIONS AND ANSWERS

RNC-NIC; RESPIRATORY EXAM QUESTIONS AND
ANSWERS

Which kind of cells create surfactant? - Answer: class II pneumocytes.

Which mothers should receive prenatal steroids? How are they dosed? -
ANSWER: All mothers under 35 weeks gestation when delivery is near.

-give two dosages, 24 hours apart.


Which is worse: right to left or left to right shunting? Why? - ANSWER: Right
to left is worse.

-deoxygenated blood enters the aorta and is sent out into the body.


What PaO2 levels on a hyperoxia test indicate that PPHN is the most likely
cause of cyanosis, rather than CHD? - ANSWER: PaO2 >150mmHg: probable
PPHN.

-PaO2 <100mmHg: probable CHD.


What is the typical pH on an ABG? - Answer: 7.35-7.45


What is the usual PaCO2 on an ABG? - ANSWER: 35–45 mmHg


What is the usual PaO2 level for term/preterm newborns on an ABG? –
ANSWER -term: 50 to 70 mmHg

-Preterm: 45–65 mmHg


What is the typical HCO3 on an ABG? - ANSWER 22–26 mEq/L

, Which type of compensation occurs faster: respiratory or metabolic? - Answer
respiratory.


What vent modifications should we do if ABG shows excessive CO2 levels? -
ANSWER - Increase PIP.

-Increase the rate

-Increase tidal volume.

-Increase the amplitude

-decrease frequency.


What vent modifications should we make if the ABG's CO2 levels are low? -
ANSWER: reduce PIP.

-decrease rate.

-Decrease tidal volume.

-decrease amplitude.

-Increase frequency.

-extubate?


What vent modifications should we do if ABG shows low PaO2? - ANSWER -
Increase FiO2.

-Increase PEEP.

-Increase PIP.