To assess anemia and reduced oxygen-carrying capacity, a measurement of hematocrit and/or hemoglobin is performed. Whether hemoglobin or hematocrit is preferred depends on different needs and is often determined by tradition.  Both hematocrit and hemoglobin are important hematology parameters for diagnosing...

Disturbance of the mechanisms which maintain normal blood pH is a defining feature of diabetic ketoacidosis (DKA), an acute and life-threatening complication of the chronic metabolic disease, diabetes.  For this reason diagnosis and monitoring of DKA invariably include measurement of arterial blood gases. This...

50-75 % of all newborns develop jaundice during their first week of life [1,2,3]. The decision behind which treatment is necessary and when it should be initiated is based upon a measurement of the concentration of total bilirubin (ctBil) in serum, plasma or whole blood.  It is therefore obvious that it is important...

Oxygen saturation can be obtained from many different types of devices. This range of choices causes some confusion as to definitions of measured variables and their clinical interpretation. This article gives some historical background and describes the two different ways saturation can be obtained from a blood gas ...

Arterial blood gas analysis is a test most frequently performed on critically ill patients in the emergency room, recovery room and intensive care unit by nursing staff. One of the main purposes of the test is assessment of acid-base status, which is often disturbed during critical illness. This article is intended...

Apgar scores and umbilical artery pH have traditionally been used as objective measures of neonatal asphyxia. According to the literature, the practice of cord gas analysis varies greatly both between and within countries - whether analysis is performed, whether it is routine at all births and why it is performed...

Cord blood ph measurement at birth, using relatively simple and non-invasive methods, provides obstetricians and perinatologists with an objective and sensitive measure for the condition of the infant during the final stage of birth.  As long as certain criteria are observed, the reported values are reliable. Routine ...

High frequency oscillatory ventilation (HFOV) is often used in neonatal intensive care. HFOV has been shown to decrease bronchopulmonary dysplasia [1,2,3] in preterm infants and to be very effective in the treatment of persistent pulmonary hypertension of the newborn when used in conjunction with inhaled nitric oxide ...

Measurement of glucose and lactate after 30 minutes of storage at room temperature can give deviating results of up to 5 % [1,2] and 29 % of the reference value [3] respectively [1,4], due to in vitro glycolysis Glucose and lactate are both important parameters in the surveillance of patients in critical care...

Non-invasive monitoring of oxygenation has become a standard procedure in neonatal critical care. Both transcutaneous pO₂ (tcpO₂) monitors and pulse oximeters involve methodological and practical issues that should be known to those using these devices in infants. tcpO₂ measurements are influenced by skin thickness, ...