In this small study, IVC collapse of >/= 50% on bedside ultrasound correlated with a CVP </= 8 cm H2O and was 91% sensitive, 94% specific. But be sure to read the discussion.
After using ketamine for pediatric procedural sedation, 22% of children experienced negative behavioral symptoms measured 1-2 weeks after ED discharge. The most common symptoms were apathy/withdrawal and separation anxiety. Pre-procedural anxiety was the greatest predictor of negative behavioral changes.