Always have a spare laryngoscope and spare batteries
Laryngoscopes are used in endotracheal intubation
Always check your equipment carefully before attempting to intubate
Laryngoscopes consist of two parts – the handle (with batteries inside) and the blade
Always have at least two laryngoscopes and some spare batteries – in case the globe is not working or the batteries are flat
There are two types of laryngoscope blades: straight and curved
Straight (Miller) blades are used in neonates and infants. They are designed for the tip to fit beneath the epiglottis and directly lift it forward. They come in two sizes – 0 and 1. They can cause vagal stimulation, bradycardia and laryngospasm.
Curved (MacIntosh) blades are used in chidren. The technique is the same as for adults – the tip of the blade should sit in the valeculla anterior to the epiglottis and lift it forward. They come in 3 paediatric sizes – 1, 2 and 3.
The appropriate blade length can be sized by measuring between the central incisors and the angle of the jaw
You can always intubate with a blade that is too long, but never with one that is too short