Inferior Vena Cava Collapse Due to Sniff Test Indicator

**Semantic type:** Qualitative Concept

**Definition:** An indication as to whether resting inferior vena cava diameter is reduced with sniff, which is defined as a sharp inhalation.

**Synonyms:** - IVCCSIND - Inferior Vena Cava Collapse Indicator - Inferior Vena Cava Collapse Sniff Ind - Inferior Vena Cava Collapse Sniff Ind