MEASUREMENT OF PLASMA CATECHOLAMINE CONCENTRATIONS

Plasma catecholamine concentrations in acute states of stress and trauma.

Plasma catecholamine concentrations during surgery in unsupplemented glucocorticoid-treated patients.

Plasma catecholamine (CA) concentrations, mean arterial pressure (MAP) and plasma corticosteroids were measured in fifteen unsupplemented glucocorticoid-treated patients undergoing major surgery. Eight patients had normal and seven patients had reduced plasma corticosteroid concentrations. Changes in plasma CA and MAP during surgery were not related to adrenocortical function. Two patients deve...

Plasma Catecholamine Modulation

We measured a2-adrenoreceptor density as well as affinity for and sensitivity to agonist on intact platelets of normotensive and hypertensive subjects before and after physiological increases in plasma catecholamines. In normotensives, posture-induced rises in plasma catecholamines correlated with reduced C2-adrenoreceptor agonist affinity and fewer high affinity state receptors. Platelet aggre...

Non-VKA Oral Anticoagulants: Accurate Measurement of Plasma Drug Concentrations

Non-VKA oral anticoagulants (NOACs) have now widely reached the lucrative market of anticoagulation. While the marketing authorization holders claimed that no routine monitoring is required and that these compounds can be given at fixed doses, several evidences arisen from the literature tend to demonstrate the opposite. New data suggests that an assessment of the response at the individual lev...

Effect of blood sampling and shipment to slaughter on plasma catecholamine concentrations in bulls.

The effect of venipuncture on blood serum catecholamine concentrations was studied in five yearling Red Angus bulls. Treatments consisted of sampling jugular vein blood via indwelling cannulas in a squeeze chute every 10 min for 1 h; sampling jugular vein blood from an indwelling catheter before, during and after venipuncture simulation; sampling jugular vein blood by venipuncture in a chute af...