Nurs 172 exam 2 Q & A latest update 2025
Alveoli --- correct precise answer ---Microscopic air sacs in the lungs
that facilitate the exchange of oxugen and carbon dioxide between the
blood and the air
Muscles during inspiration --- correct precise answer ---Muscles
contract and diaphragm expands
Muscles during expiration --- correct precise answer ---Muscles relax
and diaphragm contracts
Role of phrenic nerve during respiration --- correct precise answer ---
Give signals to diaphragm to move
V stands for --- correct precise answer ---ventilation
Q stands for --- correct precise answer ---perfusion
Compliance stands for --- correct precise answer ---Ability to expand
Elasticity stands for --- correct precise answer ---Ability to recoil
High V / Q means --- correct precise answer ---good ventilation poor
prefusion- this is dead space is where gas exchange does not occur
because it is not being perfused .
, Low V / Q is --- correct precise answer ---poor ventilation poor
prefusion- this is called shunt
Shunt --- correct precise answer ---- structural problem is happing ,
alveoli may have issue with compliance or elasticity . Blood is getting
their , but alveoli can't do the exchange
Alveolar- not supposed to have dead space --- correct precise answer -
--, they are not exchanging gas because there is no prefusion . Not
dead because there is a problem with alveoli but because they are not
being perfused If there was prefusion then we could have gas
exchange . Blood is not getting there in time .
Clubbing in extremities happens with --- correct precise answer ---
Low oxygen over a long period of time
Barrel chest is an indication of --- correct precise answer ---Long
term work of breathing and long term use of accessory muscles to
breath
Ventilation --- correct precise answer ---exchange of gases in the body
, carbon dioxide and oxygen
What is used to measure ventilation --- correct precise answer ---
Capnography is used to deterime effectiveness of removing carbon
dioxide
Oxygenation --- correct precise answer ---Ability for oxygen to be
picked up by RBCs and transported to tissue and organs
Alveoli --- correct precise answer ---Microscopic air sacs in the lungs
that facilitate the exchange of oxugen and carbon dioxide between the
blood and the air
Muscles during inspiration --- correct precise answer ---Muscles
contract and diaphragm expands
Muscles during expiration --- correct precise answer ---Muscles relax
and diaphragm contracts
Role of phrenic nerve during respiration --- correct precise answer ---
Give signals to diaphragm to move
V stands for --- correct precise answer ---ventilation
Q stands for --- correct precise answer ---perfusion
Compliance stands for --- correct precise answer ---Ability to expand
Elasticity stands for --- correct precise answer ---Ability to recoil
High V / Q means --- correct precise answer ---good ventilation poor
prefusion- this is dead space is where gas exchange does not occur
because it is not being perfused .
, Low V / Q is --- correct precise answer ---poor ventilation poor
prefusion- this is called shunt
Shunt --- correct precise answer ---- structural problem is happing ,
alveoli may have issue with compliance or elasticity . Blood is getting
their , but alveoli can't do the exchange
Alveolar- not supposed to have dead space --- correct precise answer -
--, they are not exchanging gas because there is no prefusion . Not
dead because there is a problem with alveoli but because they are not
being perfused If there was prefusion then we could have gas
exchange . Blood is not getting there in time .
Clubbing in extremities happens with --- correct precise answer ---
Low oxygen over a long period of time
Barrel chest is an indication of --- correct precise answer ---Long
term work of breathing and long term use of accessory muscles to
breath
Ventilation --- correct precise answer ---exchange of gases in the body
, carbon dioxide and oxygen
What is used to measure ventilation --- correct precise answer ---
Capnography is used to deterime effectiveness of removing carbon
dioxide
Oxygenation --- correct precise answer ---Ability for oxygen to be
picked up by RBCs and transported to tissue and organs
