Skip to content

Q wave

SHARE VIA:

Normal Q waves are narrow (average 0.02 seconds and less than 0.03 seconds), are usually less than 5mm deep in left precordial leads and aVF but may be as deep as 8mm in lead 3 in children younger than 3 years.

Q waves are abnormal if they:

  • Appear in the right precordial leads i.e. V1 (e.g. severe RVH)
  • Are absent in the left precordial leads (LBBB)
  • Are abnormally deep (ventricular hypertrophy of the volume overload type)
  • Are abnormally deep and wide (myocardial infarction or fibrosis)

Author

KEEP READING

CT-seizures-2

Choosing Wisely – Viral Respiratory Panels in children with respiratory symptoms

, ,
HEADLICE HEADER

Headlice

Playing-in-harmony-HEADER

Getting everyone to sing in harmony

Choosing-wisely-AXR-HEADER

Choosing Wisely – Radiographs in children with suspected constipation

, ,
Antibiotics-in-the-EDHEADER

Antibiotics in the paediatric emergency department

, ,
Copy of Trial (1)

Bubble Wrap PLUS – September ’23

CT-seizures

Choosing Wisely – Investigations for seizures that have returned to baseline

, ,
Threadworm-HEADER

Threadworms

ikigai HEADER

Ikigai – A reflection on DFTB23

Medical clearance

Choosing Wisely – Investigations for Paediatric Patients presenting with Psychiatric Symptoms

, ,
Life-in-Art-HEADER

Life in Art

CW - CXRs

Choosing Wisely – Radiographs in children with respiratory symptoms

, ,
Breaking barriers HEADER

Breaking down barriers

Mediastinal massesHEADER

The emergency management of mediastinal masses

, ,
Pause HEADER

The Pause- a recognition of a life

,

DFTB WORLD

EXPLORE BY TOPIC