IVC ultrasound: Difference between revisions
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^Measure ~2cm from IVC/RA junction | ^Measure ~2cm from IVC/RA junction | ||
*Can ask patient to sniff or valsalva to evaluate collapse | |||
== See Also == | == See Also == | ||
Revision as of 17:55, 21 September 2013
Background
- Inferior vena cava ultrasound measurements
- >50% collapse correlates with CVP <8
- Unclear if able to use in intubated patients
Measurements
| IVC | % Collapse during inspiration^ | CVP |
| <1.5cm | >50% | 0-5 |
| 1.5-2.5cm | >50% | 5-10 |
| 1.5-2.5cm | <50% | 10-15 |
| >2.5cm | Little phasicity | 15-20 |
^Measure ~2cm from IVC/RA junction
- Can ask patient to sniff or valsalva to evaluate collapse