1|Page
FREC 4 Exam LATEST Questions With 100%
Verified Answers| 2025/2026
What are the terms in relation to expired Co2 monitoring - CORRECT-ANSWER-
Capnography: measurement of Co2 in expired breath.
Capnometry: numerical measurement of exhaled Co2 at the end of respiration
known as end- tidal Co2
Capnogram: waveform illustrating the measurement of Co2 across time and with
a height corresponding to the quantity of gas exhaled.
What are the benefits for capnography - CORRECT-ANSWER-Preventing hyper and
hypo inflation in head injured patients.
Early warning of respiratory distress/failure in sedated patients.
Confirming correct placement of ET tube or supraglottic airway.
Indicating ROSC in cardiac arrest.
What are the normal EtCO2 measurements. - CORRECT-ANSWER-35-45
mmhg (4.7-6.0kPa) lower in CPR.
, 2|Page
What are the indications and contraindications for Entonox - CORRECT-ANSWER-
Indications:
Moderate to severe pain.
Labour pains.
Contraindications:
Severe head injuries with a decreased level of UNCX.
Diving within last 24hrs.
Violently disturbed patients.
Intraocular injection of gas within last 4 weeks.
Abdominal pain where intestinal obstruction is suspected.
Cautions:
Any patient at risk of pneumothorax, penetrating chest trauma.
Name 4 ways of measuring a respiratory rate - CORRECT-ANSWER-Watching chest
rise and fall.
Counting the rate using a stethoscope.
Using an oxygen mask with a rate indicator.
Monitoring the end tidal CO2 trace.
FREC 4 Exam LATEST Questions With 100%
Verified Answers| 2025/2026
What are the terms in relation to expired Co2 monitoring - CORRECT-ANSWER-
Capnography: measurement of Co2 in expired breath.
Capnometry: numerical measurement of exhaled Co2 at the end of respiration
known as end- tidal Co2
Capnogram: waveform illustrating the measurement of Co2 across time and with
a height corresponding to the quantity of gas exhaled.
What are the benefits for capnography - CORRECT-ANSWER-Preventing hyper and
hypo inflation in head injured patients.
Early warning of respiratory distress/failure in sedated patients.
Confirming correct placement of ET tube or supraglottic airway.
Indicating ROSC in cardiac arrest.
What are the normal EtCO2 measurements. - CORRECT-ANSWER-35-45
mmhg (4.7-6.0kPa) lower in CPR.
, 2|Page
What are the indications and contraindications for Entonox - CORRECT-ANSWER-
Indications:
Moderate to severe pain.
Labour pains.
Contraindications:
Severe head injuries with a decreased level of UNCX.
Diving within last 24hrs.
Violently disturbed patients.
Intraocular injection of gas within last 4 weeks.
Abdominal pain where intestinal obstruction is suspected.
Cautions:
Any patient at risk of pneumothorax, penetrating chest trauma.
Name 4 ways of measuring a respiratory rate - CORRECT-ANSWER-Watching chest
rise and fall.
Counting the rate using a stethoscope.
Using an oxygen mask with a rate indicator.
Monitoring the end tidal CO2 trace.
