Respiratory system mnemonic

Capacities that include residual volume

The mnemonic

FRC, TLC contain Residual

What each word stands for

  • FRCFunctional residual capacity = ERV + RV
  • TLCTotal lung capacity = VC + RV
  • ResidualCannot be measured by simple spirometry

Why it matters clinically

Explains why helium dilution or plethysmography is needed in obstruction or restriction.

Where it stops being reliable

It does not give the numeric values.

Teaching aid, still awaiting independent review. Confirm facts in a standard source.

More mnemonics

Common questions

What is the Respiratory system mnemonic?

FRC, TLC contain Residual. It helps you recall: Capacities that include residual volume.

What does "FRC" stand for?

Functional residual capacity = ERV + RV

What does "TLC" stand for?

Total lung capacity = VC + RV

What does "Residual" stand for?

Cannot be measured by simple spirometry

What are all the parts of the FRC, TLC contain Residual mnemonic?

FRC: Functional residual capacity = ERV + RV; TLC: Total lung capacity = VC + RV; Residual: Cannot be measured by simple spirometry.

Which topic does this mnemonic belong to?

It belongs to Respiratory system in Physiology.

Where does this mnemonic stop being reliable?

It does not give the numeric values.

How is this useful clinically?

Explains why helium dilution or plethysmography is needed in obstruction or restriction.

How do I make this mnemonic stick?

Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a Physiology question about Respiratory system.

Is this a standard mnemonic?

It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.