Conjunctival oxygen tension monitoring during a controlled phlebotomy
| Autor: | Dean R. Hess, Michael D. Klein, Denise Bauernshub, Nancy K. Sabulsky, David Eitel |
|---|---|
| Rok vydání: | 1988 |
| Předmět: |
Adult
Male Resuscitation medicine.medical_treatment Partial Pressure Posture Intravenous fluid Blood loss Medicine Humans Pulse Bloodletting Monitoring Physiologic business.industry General Medicine Phlebotomy Oxygen tension Oxygen Blood pressure Pulse rate Anesthesia Emergency Medicine Female Blood Gas Analysis business Fluid replacement Conjunctiva |
| Zdroj: | The American journal of emergency medicine. 6(1) |
| ISSN: | 0735-6757 |
| Popis: | A decrease in the conjunctival oxygen tension (Pcjo2) and conjunctival index ( Pcjo 2 Pao 2 ) has been shown to be an early marker of acute blood loss. We sequentially measured Pcjo2, Pcjo 2 Pao 2 , blood pressure, and pulse rate in five healthy adults after controlled phlebotomy of 450 mL and after intravenous fluid repletion. No significant changes occurred in either the Pcjo2 or Pcjo 2 Pao 2 after phlebotomy or after fluid replacement. We conclude that a blood loss of 450 mL in healthy, euvolemic adults is insufficient to perturb the conjunctival index. The lower limits of sensitivity of changes in Pcjo2 and Pcjo 2 Pao 2 in response to acute blood loss remain to be established. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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