Lungs

Question 1

What is Stridor

Answer 1

Can be inspiration or expiration
High pitch
Upper airway (trachea / throat)
Screeching / squawking
Narrowing of larynx / trachea or blockage of the same
Can be Life Threatening
Croup / Epiglottitis / Anaphylaxis

Question 2

What is Rhonchi

Answer 2

Mainly expiration but can be inspiration
Low but loud
Snoring / snorting / grunting sound
Improves with coughing / suction
When air leaves the trachea and hits mucus and fluids
Bronchitis / COPD

Question 3

What is Wheezing

Answer 3

Mainly expiration
High pitch
Squeaky / Whistling sound
Asthma, COPD, narrowing of airways

Question 4

What is Rales

Answer 4

Fine Crackles / like crackling of a fire
High Pitch / distinguishable pops
Mainly on Inspiration
Can’t be cleared by coughing
Air sacs opening up on inspiration

Question 5

What is Course Crackles

Answer 5

Low pitch, sounds like gurgling
Towards start of inspiration but can go into expiration
Coughing doesn’t clear it
Large Airway (bronchi) filled with fluid / thick mucus / Chronic lung disease

Question 6

What is the calculation for Cylinder Duration of an E tank?

Answer 6

Tank Constant - E tank 0.28, D tank 0.16, M tank 1.56

Tank constant x (PSI-200)/flow in LPM = duration of O2 in minutes

Subtract 200 for safe residual pressure