Research Article
Agreement between Arterial and Capillary pH, pCO2, and Lactate in Patients in the Emergency Department
Table 1
Demographic and clinical characteristics of patients at study inclusion.
| Number of observations | 197 | Age, mean (SD), y | 57.9 (16.3) | Male, no. (%) | 126 (63.9) | BMI, median (IQR) | 24.7 (20.8–28.5) |
| Suspected pathology at sampling, no. (%) | COPD | 52 (26.4) | Asthma | 7 (3.6) | Pneumonia | 16 (8.2) | Pulmonary embolism | 4 (2) | Other respiratory failure | 22 (11.2) | Carbon monoxide poisoning | 3 (1.5) | Diabetic ketoacidosis | 16 (8.1) | Epilepsia | 12 (6.1) | Sepsis | 12 (6.1) | Shock | 6 (3.1) | ROSC | 3 (1.5) | Cardiac failure | 15 (7.6) | CVA | 1 (0.5) | Other | 28 (14.2) |
| Capillary blood sampling attempts, no. (%) | One attempt | 170 (92.9) | Two attempts | 12 (6.6) | Three or more attempts | 1 (0.5) |
| Arterial blood sampling attempts, no. (%) | One attempt | 165 (90.7) | Two attempts | 13 (7.1) | Three or more attempts | 4 (2.2) |
| Mean arterial pressure (SD) (mmHg) | 96.0 (21.1) | Delay arterial-capillary (IQR) (min) | 1 (1–2) |
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BMI, body mass index; COPD, chronic obstructive pulmonary disease; CVA, cardiovascular accident; IQR, interquartile range; ROSC, return of spontaneous circulation SD, standard deviation.
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