Reliability of femoral artery sampling during cardiopulmonary resuscitation

✍ Scribed by Arthur B Sanders; Gordon A Ewy; Tracy V Taft

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 338 KB
• Volume: 13
• Category: Article
• ISSN: 1097-6760
• DOI: 10.1016/s0196-0644(84)80725-8

✦ Synopsis

blood gases, in CPR; cardiac arrest, arterial blood gases; CPR, arterial blood gases

Reliability of Femoral Artery Sampling During Cardiopulmonary Resuscitation

A study was undertaken to determine whether femoral arterial blood gas (ABG) content adequately reflects central oxygenation and acid base status during cardiopulmonary resuscitation (CPR) from fibrillatory arrest in the canine model. Six dogs were fibrillated electrically. After 3 minutes, CPR was begun. ABG samples were taken simultaneously from femoral and thoracic aortic catheters at O, 3, 8, 13, 23, and 28 minutes of ventricular fibrillation. Pair analysis revealed a statistically significant difference between aortic and femoral PO 2 values throughout the duration of external chest compression and assisted ventilation (P < .05). The aortic PO 2 was 12% more than the femoral PO 2. There was no difference in pH and PCO 2 between the femoral and aortic blood gas samples. The lower femoral PO 2 observed may be the result of poorer blood flow to the lower half of the body. It was concluded that femoral PO 2 underestimates aortic PO 2 during external chest compression and assisted ventilation in the canine model.