Included In This Lesson
Outline
Nursing Points
General
- Swan-Ganz Catheters
- Invasive -> tip inserted between right ventricle and left atrium
- Pulmonary artery catheter -> measures pulmonary artery pressure (PAP)
- Systolic (squeeze) pressure (PAS)
- Normal = 20-30 mm Hg
- If elevated = lung issue (due to pulmonary vasoconstriction)
- Pulmonary hypertension
- Pulmonary hypoxia
- Pulmonary embolism
- COPD
- ARDS
- Diastolic (relaxed and filling) pressure (PAD)
- Normal 6-12 mm Hg
- If elevated = heart issue
- Cardiac tamponade
- Left ventricular failure
- Mitral valve disease
- Only SOMETIMES correlated with left ventricular end-diastolic pressure (LVedp)
- Systolic (squeeze) pressure (PAS)
- Cannot use Swan-Ganz with:
- Right bundle branch block (RBBB) -> hindrance in RV systole creates a drop in pressure = inaccurate PAD
- Mitral valve disease -> cause inaccurate increased pressure in left atrium due to valve issue
- Pulmonary hypertension
- Decreased left ventricular compliance
- Aortic insufficiency -> valve not closing -> blood backflow = increase in pressure
- Pulmonic insufficiency -> valve not closing -> blood backflows = drop in pressure
