We therefore examined the relationship of blood gas, pH, and lactate values measured with an i-STAT portable clinical analyzer with those measured using standard laboratory blood gas (thermostatted to 25☌) and lactate analyzers in samples taken from three species of carcharhiniform sharks. A few studies have validated the use of portable clinical analyzers for assessing blood gases and acid-base profiles in teleosts, but equivalent data are not available for elasmobranchs. However, these instruments are designed for clinical use and thus process samples at 37☌. Portable clinical analyzers allow these measurements to be made easily in the field.
Blood gas, pH, and lactate data are often used to assess the physiological status and health of fish and can often be most valuable when blood samples are analyzed immediately after collection.
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