pH

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  • noun

Synonyms for pH

(from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter

References in periodicals archive ?
In transported Dalmatian pelicans, peripheral blood pH remained unchanged at each sampling time point despite alterations in C[O.sub.2], lactate, Pc[o.sub.2], P[o.sub.2], HC[O.sub.3], Tc[o.sub.2], BE, and S[o.sub.2].
In this experimental rat model of metabolic acidosis induced by intragastric methanol, THAM treatment significantly reduced mortality, improved blood pH, and extended the survival time of rats compared with the NaHC[O.sub.3] and control treatments in the first 90 min after the metabolic acidosis developed.
Efficacy of different concentration of antacids on blood pH, different blood parameters and ruminal fluid pH: Experimental animals were isolated into four groups.
Reduction in blood pH with reducing DCAD level might be attributed to increased Cl content of the diet.
In addition, the multivariate model identified low blood pH and high serum lactate level during ED admission as useful predictors of in-hospital mortality at 2 and 7 days.
In addition, a low level of potassium was associated with a higher likelihood of presenting with tachycardia (OR: 3.54, 95% CI: 1.32-9.51), urine output > 1 ml/kg/hr (OR: 5.35, 95% CI: 2.58-11.10), and nonacidosis (blood pH > 7.35, OR: 7.74, 95% CI: 3.78-15.58).
Day 1 Day 5 Serum potassium (meq/L) 2.1 3.5 Serum sodium (meq/L) 141 139 Blood pH 7.30 7.40 Bicarbonate levels (meq/L) 17.5 24.0 pCO2 26 38 Anion gap 9 10 Urine pH 7 Hemoglobin (g/dL) 11.0 10.2 Total leucocyte Count (/[micro]L) 4500 4830 Blood urea (mg/dL) 28 25 Serum creatinine (mg/dL) 0.7 0.8 SGOT/SGPT (IU/L) 25/26 Serum bilirubin (mg/dL) 0.9 Total protein (g/dL) 6.2 Serum albumin (g/dL) 3.2 TSH (mIU/L) 2.0 ESR (mm/hr) 15 C-reactive protein (mg/L) <1 Rheumatoid factor (IU/ml) <10
This may indicate that caffeine had no effect on perception of effort, but it could also reasonably be expected that perception of effort should have increased in the caffeine trial, where sprint times were faster, and significantly more acidosis (as indicated by a significantly greater blood lactate concentration, and significantly reduced blood pH) was realised during the protocol.
Predictors of mortality are comorbidities, severe acidemia at presentation (arterial blood pH < 7.0), development of coma, or fever [4].
We also considered preprocedural hemoglobins, heart rate, systolic blood pressure, blood pH, platelet count, international normalized ratio, prothrombin time, activated partial thromboplastin time, and number of transfused PRBC units.
The concentration of exhaust gas (C[O.sub.2]) in the blood is regulated by monitoring the blood pH, and the rate of ventilation is modulated to maintain a steady pH level of 7.4, [+ or -]0.05: if the pH falls it is presumed the C[O.sub.2] level is high, so the ventilation rate increases, and vice versa.
A normal arterial blood pH of 7.40 corresponds with 40 nanomoles/liter (nmol/liter), or 40 x 10-9 nmol/L.
To assess its severity, metabolic acidosis has been divided into three forms based on the systemic arterial blood pH: mild (pH of 7.30-7.36; associated with HC[O.sub.3.sup.-] of >20 mmol/L), moderate (pH of 7.20-7.29; associated with HC[O.sub.3.sup.-] of 10-19 mmol/L), and severe (pH of <7.20; associated with HC[O.sub.3.sup.-] of <10 mmol/L).