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Table 1 Patient characteristics

From: Concordance and limits between transcutaneous and arterial carbon dioxide pressure in emergency department patients with acute respiratory failure: a single-center prospective observational study

Male sex, no. (%)

51 (57)

Age, mean (± SD) - year

76 (15)

Past medical history, no. (%)

 

Acute pulmonary edema

27 (29)

Chronic obstructive pulmonary disease

27 (29)

Ischemic heart disease

21 (23)

Home oxygen

16 (17)

Clinical data at admission, median (IQR)

 

Heart rate - beats/min.

94 (80-110)

Systolic blood pressure - mm Hg

122 (106-144)

Diastolic blood pressure - mm Hg

69 (60-78)

Respiratory rate - breaths/min.

24 (19-28)

Glasgow coma scale

15 (14-15)

Temperature - C

37.0 (36.2-37.6)

Laboratory values, median (IQR)

 

PaCO 2 - mm Hg

46.2 (37.6-66.8)

PtCO 2 - mm Hg

47.2 (42.1-60.0)

PaO 2 - mm Hg

73.5 (63.0-89.0)

pH

7.37 (7.30-7.43)

HCO 3 - mEq/L

26.0 (22.8-29.7)

Base excess - mmol/L

1.9 (-1.9-5.8)

Lactate - mmol/L

1.3 (0.7-2.2)

Hemoglobin - g/dL

12.3 (10.9-13.8)

White blood cells - G/L

12.4 (7.9-15.5)

C-reactive protein

41 (8-122)

Glycemia - g/L

1.4 (1.2-1.7)

Brain natriuretic peptide - ng/L

1704 (579-6200)

Diagnosis, no. (%)

 

Heart failure

25 (27)

COPD

14 (15)

Pneumonia

42 (46)

Pulmonary embolism

5 (5)

Outcome, no. (%)

 

Noninvasive ventilation required

41 (45)

Intubation required

4 (4)

Admitted to hospital

61 (66)

Admitted to ICU

19 (21)

Discharged from ED

10 (11)

Death at the ED

2 (2)

Inpatient mortality

9 (10)

  1. COPD: Chronic obstructive pulmonary disease; ED: Emergency department; ICU: Intensive care unit; IQR: Interquartile range; PaCO 2 : Partial pressure of carbon dioxide in the blood; PtCO 2 : Transcutaneous partial pressure of carbon dioxide in the blood; PaO 2 : Partial pressure of dioxygen in the blood.