Homeostatic mechanisms ensure that in health the extracellular fluid (ECF) concentration of electrolytes, including calcium, is maintained within well-defined limits. Abnormality in ECF calcium concentration can have profound adverse effects.  The most common means of assessing calcium status is to measure total...

In Geneva in 1821, a French nobleman Jacques Alexandre Le Jumeau, Vicomte de Kergaradec, became the pioneer of modern fetal monitoring. He described the sound of the fetal heartbeat, as he used the newly invented stethoscope (by Laennec, France 1819) and applied it to the abdominal wall of a pregnant woman [1]. The...

A recently published paper describes the sad case history of a 17-year-old man who was brought, unconscious and totally unresponsive (Glasgow Coma Score 3), by ambulance to the emergency department of his local hospital. Blood gas analysis revealed he was suffering severe metabolic acidosis (pH 7.25, bicarbonate 9...

Interview Fetal scalp Blood Sampling (FBS) – not exactly wishful thinking for the mother, nor for the obstetrician? The procedure is regarded as cumbersome, the sample quality is questionable and the consequences of the result may be instrumental vaginal delivery or Cesarian Section (CS). acutecaretesting.org has...

Reprinted with permission from Elsevier from "Neonate capillary blood gas reference values", by Jocelyne Cousineau, Suzanne Anctil, Ana Carceller, Monique Gonthier and Edgard E. Delvin, CLINICAL BIOCHEMISTRY, Vol no 38, 2005, pp 905-907. Copyright 2005 by Canadian Society of Clinical Chemists. OBJECTIVES Because...

Iatrogenic phlebotomy loss resulting from the intensive clinical monitoring in the weeks immediately following birth remains the primary cause of neonatal anemia and the need for red-blood-cell (RBC) transfusion. Reducing RBC transfusion needs in the neonatal intensive care unit (NICU) requires new approaches for...

Blood gases are measured from an arterial blood sample to evaluate the respiratory adequacy and oxygen status of the critically ill patient. For the adult patient, the arterial blood is sampled either by arterial puncture or from an indwelling catheter. In neonates and children, the wish to minimize iatrogenic blood...

Capillary blood sampling via a heel lance is the most common procedure performed in hospitalized neonates. Adequate training and supervision of the personnel performing the procedure is necessary to prevent/minimize inadequate sampling volumes, false laboratory results and complications such as pain. Efforts should be ...

The significance of good practice during the pretesting phase of clinical laboratory investigation cannot be overemphasized. The production of high-quality, accurate results, which are clinically useful, depends as much on practice before the patient’s sample reaches the laboratory as it does on the analytical phase...

Blood gas analysis at the point of care plays an important role during and after an open-heart surgery. acutecaretesting.org recently talked to Prof. Knut Kleesiek, MD, Director of the Institute for Laboratory and Transfusion Medicine of the Heart and Diabetes Center North Rhine-Westphalia in Germany, to find out more ...