

Confidently manage critical moments in pediatric emergency care
When seconds shape outcomes, don't compromise on critical parameters
Results when and where you need them
In the pediatric emergency department, rapid and reliable assessment can mean the difference between stabilization and deterioration.
The ABL90 FLEX PLUS analyzer provides fast results in 35 seconds on 17 vital parameters from as little as 65 μL of blood. The analyzer measures arterial, venous, and capillary whole blood. It runs consecutive samples quickly, enabling fast triage and informed clinical decisions. With an uptime of more than 23.5 hours per day, the ABL90 FLEX PLUS analyzer is ready when you need it.
Move your ABL90 FLEX PLUS analyzer wherever you need it in the pediatric emergency department. It features a roll-stand, built-in battery, and Wi-Fi connectivity.



Get the critical analytes you need
- ✔ Lactate testing in emergent patient cases
- ✔ Glucose testing for rapid identification of hypo- and hyperglycemic patients
- ✔ Electrolyte testing delivers rapid insight into critical potassium, sodium, calcium, and chloride levels
Get all of those parameters alongside pH, blood gases, and oximetry measurements in one 65 μL whole blood sample.
Parameters measured
Potential of hydrogen
The degree of acidity or alkalinity of any liquid (including blood) is a function of its hydrogen ion concentration [H+], and pH is simply a way of expressing hydrogen ion activity. The relationship between pH and hydrogen ion concentration is described thus:
pH = -log aH+
where aH+ is hydrogen ion activity.
Low pH is associated with acidosis and high pH with alkalosis [1].
1. CLSI. Blood gas and pH analysis and related measurements; Approved Guidelines. CLSI document CA46-A2, 29, 8. Clinical and Laboratory Standards Institute, 940 West Valley Road, Suite 1400, Wayne, Pennsylvania 19087-1898 USA, 2009.
Partial pressure of carbon dioxide
Carbon dioxide (CO2) is an acidic gas; the amount of CO2 in blood is largely controlled by the rate and depth of breathing or ventilation. pCO2 is the partial pressure of CO2 in blood. It is a measure of the pressure exerted by that small portion (~5 %) of total CO2 that remains in the gaseous state, dissolved in the blood plasma. pCO2 is the respiratory component of acid-base balance and reflects the adequacy of pulmonary ventilation. The severity of ventilator failure as well as the chronicity can be judged by the accompanying changes in acid-base status [1].
1. Higgins C. Parameters that reflect the carbon dioxide content of blood. www.acutecaretesting.org Oct 2008.
Partial pressure of oxygen
The amount of oxygen in blood is controlled by many variables, e.g. ventilation/perfusion. pO2 is the partial pressure of oxygen in a gas phase in equilibrium with the blood. pO2 only reflects a small fraction (1 – 2 %) of total oxygen in blood that is dissolved in blood plasma [1]. The remaining 98 – 99 % of oxygen present in blood is bound to the hemoglobin in the erythrocytes. pO2 primarily reflects the oxygen uptake in the lungs.
1. Wettstein R, Wilkins R. Interpretation of blood gases. In: Clinical assessment in respiratory care, 6th ed. St. Louis: Mosby, 2010.
Glucose
Glucose, the most abundant carbohydrate in human metabolism, serves as the major intracellular energy source (see lactate). Glucose is derived principally from dietary carbohydrate, but it is also produced – primarily in the liver and kidneys – via the anabolic process of gluconeogenesis, and from the breakdown of glycogen (glycogenolysis). This endogenously produced glucose helps keep blood glucose concentration within normal limits, when dietary-derived glucose is not available, e.g. between meals or during periods of starvation.
Lactate
Lactate, the anion that results from dissociation of lactic acid, is an intracellular metabolite of glucose. It is produced by skeletal muscle cells, red blood cells (erythrocytes), the brain, and other tissues during anaerobic energy production (glycolysis). Lactate is formed in the intracellular fluid from pyruvate; the reaction is catalyzed by the enzyme lactate dehydrogenase (LDH) [1].
1. Robergs RA, Ghiasvand F, Parker D. Biochemistry of exercise-induced metabolic acidosis. Am J Physiol Regul Integr Comp Physiol 2004; 287: R502-16.
Calcium
The calcium ion (Ca2+) is one of the most prevalent cations in the body, where approximately 1 % is present in the extracellular fluid of blood. Ca2+ plays a vital role for bone mineralization and many cellular processes, e.g. contractility of the heart and the skeletal musculature, neuromuscular transmission, hormone secretion and action in various enzymatic reactions such as, e.g. blood coagulation.
Chloride
Chloride (Cl-) is the major anion in the extracellular fluid and one of the most important anions in blood. The main function of Cl- is to maintain osmotic pressure, fluid balance, muscular activity, ionic neutrality in plasma, and help elucidate the cause of acid-base disturbances.
Potassium
Potassium (K+) is the major cation in the intracellular fluid, where it has a 25 - 37-fold higher concentration (∼150 mmol/L in tissue cells, ∼105 mmol/L in erythrocytes) than in the extracellular fluid (∼4 mmol/L) [1, 2]. K+ has several vital functions in the body, e.g. regulation of neuromuscular excitability, regulation of heart rhythm, regulation of intracellular and extracellular volume and acid-base status.
1. Burtis CA, Ashwood ER, Bruns DE. Tietz textbook of clinical chemistry and molecular diagnostics. 5th ed. St. Louis: Saunders Elsevier, 2012. Engquist A. Fluids/Electrolytes/Nutrition. 1st ed. Copenhagen: Munksgaard, 1985.
2. Engquist A. Fluids/Electrolytes/Nutrition. 1st ed. Copenhagen: Munksgaard, 1985.
Sodium
Sodium (Na+) is the dominant cation in the extracellular fluid, where it has a 14-fold higher concentration (∼140 mmol/L) than in the intracellular fluid (∼10 mmol/L). Na+ is a major contributor of the osmolality of the extracellular fluid and its main function is largely in controlling and regulating water balance, and maintaining blood pressure. Na+ is also important for transmitting nerve impulses and activating muscle concretion.
Carboxyhemoglobin
FMetHb is the fraction of total hemoglobin (ctHb) that is present as methemoglobin (MetHb). By convention the fraction is expressed as a percentage (%).
In the range of 0 – 60 % COHb in arterial (COHb(a)) and venous blood (COHb(v)) is similar, i.e. either venous or arterial blood may be analyzed [1]. In most medical texts FCOHb(a) is referred to as simply COHb.
1. Lopez DM, Weingarten-Arams JS, Singer LP, Conway EE Jr. Relationship between arterial, mixed venous and internal jugular carboxyhemoglobin concentrations at low, medium and high concentrations in a piglet model of carbon monoxide toxicity. Crit Care Med 2000; 28: 1998-2001.
Bilirubin
Bilirubin is the yellow breakdown product of the degradation of the heme group of hemoglobin. It is transported in blood from its site of production – the reticuloendothelial system – to the liver, where it is biotransformed before excretion in bile. Jaundice, the pathological yellow discoloration of skin, is due to abnormal accumulation of bilirubin in the tissues, and is always associated with elevated blood concentration of bilirubin (hyperbilirubinemia).
Total hemoglobin
The concentration of total hemoglobin (ctHb) in blood includes oxyhemoglobin (cO2Hb), deoxyhemoglobin (cHHb), as well as the dysfunctional hemoglobin species that are incapable of binding oxygen:
carboxyhemoglobin (cCOHb) (see COHb), methemoglobin (cMetHb) (see MetHb) and sulfhemoglobin (cSulfHb).
Thus:
ctHb = cO2Hb + cHHb + cCOHb + cMetHb + cSulfHb
The rare sulfHb is not included in the reported c tHb in most oximeters.
Fraction of fetal hemoglobin
FHbF in total hemoglobin in blood.
Fraction of deoxyhemoglobin
FHHb in total hemoglobin in blood.
Methemoglobin
FMetHb is the fraction of total hemoglobin (ctHb) that is present as methemoglobin (MetHb). By convention the fraction is expressed as a percentage (%) [1].
In most medical text boxes MetHb(a) is referred to as simply methemoglobin (MetHb).
1. CLSI. Blood gas and pH analysis and related measurements; Approved Guidelines. CLSI document CA46-A2, 29, 8. Clinical and Laboratory Standards Institute, 940 West Valley Road, Suite 1400, Wayne, Pennsylvania 19087-1898 USA, 2009.
Oxygen saturation
Oxygen saturation (sO2) is the ratio of oxyhemoglobin concentration to concentration of functional hemoglobin (i.e. oxyhemoglobin (O2Hb) and deoxyhemoglobin (HHb) capable of carrying oxygen [1].
The sO2 reflects utilization of the currently available oxygen transport capacity.
In arterial blood 98 – 99 % of oxygen is transported in erythrocytes bound to hemoglobin. The remaining 1–2 % of the oxygen transported in blood is dissolved in the blood plasma – this is the portion reported as partial pressure of oxygen (pO2) [2].
1. CLSI. Blood gas and pH analysis and related measurements; Approved Guidelines. CLSI document CA46-A2, 29, 8. Clinical and Laboratory Standards Institute, 940 West Valley Road, Suite 1400, Wayne, Pennsylvania 19087-1898 USA, 2009.
2. Higgins C. Parameters that reflect the carbon dioxide content of blood. www.acutecaretesting.org Oct 2008.
Confidence in results
The ABL90 FLEX PLUS analyzer is designed with technological standards equivalent to lab-based analyzers [1] and delivers high-quality test results. It uses direct optical spectrophotometry to measure co-oximetry parameters, unlike handheld analyzers that measure hematocrit by conductance and derive ctHb and sO2 as calculated parameters.The availability of COHb and MetHb precisely measured by co-oximetry is essential in the pediatric ED, allowing early detection of carbon monoxide poisoning and recognition of toxic exposures including nitrates, aniline dyes, or certain medications.


Use safeCLINITUBES capillary tubes to get maximum insights
✔ Made of plastic to eliminate the risk of breakage and sharp fragments✔ Contain dry electrolyte-balanced heparin to avoid heparin-induced biases and minimize the risk of clots
✔ The 70 μL size allows collecting exactly what’s needed—no more, no less—for 17 critical parameters
Capillary sampling provides a rapid and minimally invasive way to assess critical blood gas parameters in children, enabling timely decisions while minimizing discomfort in the pediatric emergency setting.
Focus on your patients while AQM automates the rest
Automatic Quality Management seamlessly performs key checks—calibration, quality control (QC), analysis, system and advanced clot checks—enabling real-time detection and automatic correction of issues that minimize errors and reduce retesting.
AQM also makes it easier to review and assess your quality control data through automated activity logging and report building, which provides you with visibility into all quality metrics. This ultimately ensures you’re getting high-quality test results.
When every second counts, AQM ensures a high analyzer performance at all times so that you can focus on what is the most important—your patients.
References
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