A Young Man Presenting with Pleuritic Chest Pain and Fever after Electrophysiological Study and Implantable Cardioverter-Defibrillator Placement: Diagnostic Difficulties and Value of Bedside Thoracic Sonography

Table 1

Laboratory data.

Variable	Admission	Reference range
Arterial pH	7.42	7.35–7.45
Arterial pCO2, mmHg	40	35–45
Arterial pO2, mmHg	74	80–100
Lactate, mmol/L	0.6	0.5–2.2
Hematocrit, %	34.1	39.0–50.0
Hemoglobin, g/dL	11.3	13.2–17.0
White blood cell count, ×10^9/L	8.33	4.4–10.1
Differential count, %
Neutrophils	26.4	40–80
Lymphocytes	56.1	20–40
Monocytes	15.7	2–10
Eosinophils	0.6	0.0–6.0
Platelet count, ×10^9/L	182	150–400
Blood urea nitrogen, mg/dL	31	10–50
Creatinine, mg/dL	1.1	0.7–1.2
Creatine kinase, U/L	42	38–174