Each endotracheal intubation attempt should be limited to how many seconds?

• A. 10 seconds
• B. 20 seconds
• C. 30 seconds
• D. 60 seconds

Answer: (B)

During endotracheal intubation in neonates, the priority is to keep the infant ventilated and oxygenated. Neonates have a high metabolic rate and very limited oxygen reserves, so any interruption in ventilation can lead to rapid desaturation and bradycardia. Limiting each intubation attempt to about 20 seconds strikes a balance between giving enough time to visualize the cords and advance the tube, while minimizing the period of apnea. If the tube isn’t in place within roughly 20 seconds, withdraw the laryngoscope and resume bag–mask ventilation to reoxygenate, then reattempt. Proper pre-oxygenation, good positioning, and having everything ready (stylet or bougie, suction, appropriate tube size) help maximize the chance of a quick successful placement. Longer attempts—such as 30 seconds or more—significantly increase the risk of hypoxemia and adverse effects, so sticking to around 20 seconds per attempt is the best practice.