What is the normal PO2 in the umbilical arteries?

What is the normal PO2 in the umbilical arteries?

Umbilical venous PO2 is approximately 28 mm Hg. Two compensatory mechanisms, namely the high oxygen affinity and the high oxygen capacity of fetal blood, produce an umbilical venous oxygen content, which is comparable to normal values of adult arterial blood.

What is the pH of the umbilical cord?

The median umbilical cord arterial pH was 7.22; range 6.55–7.52; interquartile range 7.17–7.27. An arterial pH of <7.00 occurred in 2.2% of all deliveries; the first centile was 6.94.

Is pH lower in umbilical vein the artery?

Oxygen and nutrients diffuse across the placental membrane from maternal arterial blood and is transported to the fetus by an umbilical vein….Cord Blood Gases.

BG Parameter Umbilical Artery Umbilical Vein
pH 7.12 – 7.35 7.23 – 7.44
pO2 6.2 – 27.6 16.4 – 40.0
pCO2 41.9 – 73.5 28.8 – 53.3

What does p02 mean?

ABG (Arterial Blood Gas)

BE Base excess (positive number) or base deficit (negative number)
PO2 Partial pressure of oxygen
PaO2 Partial pressure of oxygen in arterial blood
PvO2 Partial pressure of oxygen in venous blood
PCO2 Partial pressure of carbon dioxide

What are umbilical arteries?

The umbilical artery is a paired vessel that arises from the internal iliac artery. During the prenatal development of the fetus, it is a major part of the fetal circulation. After birth, the distal part of the artery obliterates and becomes the medial umbilical ligament.

What are cord blood gasses?

Cord blood gas analysis is an objective measure of the fetal metabolic condition at the time of delivery. By determining fetal acid-base status, it helps identify infants at risk for neonatal encephalopathy.

What is pCO2 in ABG?

pCO2 stands for the partial pressure of carbon dioxide (acid). The normal range of pCO2 is 35 – 45 mmHg (with some variation for chronic CO2 retainers — think COPD). The HCO3 (bicarb) on an ABG is a calculated value.

What is fetal metabolic acidosis?

Fetal acidosis is a medical term that refers to high amounts of acid levels in an unborn baby’s blood. This typically occurs when a child is deprived of oxygen for an extended period of time during or after birth.

What does E59 mean on a Canon printer?

Understand and resolve Support and / or Error Codes

Error Code Support Code Cause
E59 2114 Paper settings for printing do not match paper information set on printer.
E61 3412 Scanning original has failed.
E62 Unexpected error occurred while scanning is in progress.
E63 Reached the upper limit of pages which can be saved.

What are the median and centile ranges for umbilical cord blood gas (ACG)?

Median and centile ranges for umbilical cord blood gas and lactate values. Base excess: -3.00 mmol/L (-9.3 to +1.5) Lactate: 3.7 mmol/L (2.0-6.7) *The “P” in PCO2 and PO2 stands for “partial pressure,” which is how these umbilical cord blood gases are measured. White C, Doherty D, Henderson J et al.

What is umbilical cord arterial and venous pH?

Umbilical cord arterial pH is a measure of the fetal condition at birth Umbilical cord venous pH is a measure of maternal acid-base status and the condition of the placenta.

Why is umbilical cord blood analysis important?

This practice is important because umbilical cord blood gas analysis may assist with clinical management and excludes the diagnosis of birth asphyxia in approximately 80% of depressed newborns at term. The most useful umbilical cord blood parameter is arterial pH.

Why is umbilical blood sampling not recommended for cord blood gases?

Many different factors during pregnancy, labor, and delivery can affect cord blood gases. Umbilical blood sampling for acid-base status at all deliveries cannot be universally recommended because many facilities do not have the capabilities to support such a practice and in doing so may impose an excessive financial burden.