arterial pH

ar·te·ri·al pH

(ahr-tēr'ē-ăl)
Measurement of the acidity and alkalinity of the blood in the arteries carrying blood away from the heart.
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An intravenous line was started immediately and after resuscitation investigations showed an arterial pH of 7.32, [K.sup.+] = 2.7 mEq/L, and [Na.sup.+] = 123 mEq/L with a leukocyte count of 16 500.
body temperature, mean arterial pressure, heart rate, respiratory rate, alveolar-arterial oxygen (A-a) gradient; if fractional inspired oxygen concentration is [greater than or equal to]0.5, arterial oxygen tension (Pa[O.sub.2]); if fractional inspired oxygen concentration is <0.5, serum bicarbonate (HC[O.sub.3]); if there is no arterial blood gas analysis, arterial pH, serum sodium, serum potassium, creatinine, hematocrit, white blood cell count, Glasgow Coma Scale score, age and medical condition were entered into the APACHE II score, as shown in Figure 1 (4).
Whereas the gold standard for diagnosis of hypoxic ischemic encephalopathy is low arterial pH along with clinical evidence of low APGAR score.
At 24 h after admission to the ICU, the patient's parameters were as follows: systolic blood pressure; 95 mmHg, body temperature: 36.9[degrees]C, arterial pH: 7.31, hemoglobin: 9.0 mg/dL, and INR: 1.5.Abdominal and pelvic computed tomography revealed fragmented fractures and multiple foreign bodies suggestive of compressin the perineal region.
Venous pH can safely replace arterial pH in the initial evaluation of patients in the emergency department.
Initial lab findings were significant for a profound metabolic acidosis with an arterial pH of 6.55 (Figure 1), hyperglycemia (963 mg/dL), hydroxybuterate level greater than 8mmol/L, hyperkalemia (7.6mmol/L), bicarbonate of 3.7 mEq/L, anion gap of 27 mEq/L, creatinine of 5.5 mg/dL, and a lactate of 5.25mmol/L.
Both were found to accurately reflect arterial pH, pC[O.sub.2] (mean difference was 0.07 mmHg [+ or -] 0.38, though earlobe values were closer to arterial values than that of fingertip capillary samples) showed poor agreement between fingertip capillary and arterial p[O.sub.2] (mean difference 10.3 [+ or -] 15 mmHg, coefficient of determination 0.48 and residual standard error 15 mmHg) and better agreement in the earlobe sample (mean difference 2.1 [+ or -] 6 mmHg, correlation of determination of 0.88 and residual standard error of 6 mmHg).
The neonates of macrosomia group had a higher umbilical cord pCO2 (p < 0.001) but a lower pO2 (p < 0.001), Apgar score at 5 minutes (p = 0.044), and arterial pH (p = 0.017).
Arterial PH was acidotic at 7.21 with a C[O.sub.2] of 27 suggestive of nonanion gap metabolic acidosis with adequate respiratory compensation.
Apgar scores were 7, 9, and 10 after 1, 5, and 10 minutes, respectively, and umbilical cord arterial pH was 7.25.
Higher mortality was associated with increased age, lower arterial pH, elevated prothrombin time, and need for mechanical ventilation and vasoactive medications.