TABLE 7Vasovagal reactions in patients undergoing venepuncture in outpatient settings16

ComplicationNumber (%; 95% CI)
Diaphoresis, near syncope105/4050 (2.6%; 2.1% to 3.1%)
Syncope24/4050 (0.6%; 0.4% to 0.8%)
Convulsive syncope6/4050 (0.1%; 0.03% to 0.3%)
Ventricular tachycardia1/4050 (0.02%; 0% to 0.1%)
Total136/4050 (3.4%; 2.8% to 3.9%)

Data in Roman font were taken directly from the text; data in italics were calculated by the reviewer.

From: 2, Clinical effectiveness

Cover of What is the Value of Routinely Testing Full Blood Count, Electrolytes and Urea, and Pulmonary Function Tests Before Elective Surgery in Patients with No Apparent Clinical Indication and in Subgroups of Patients with Common Comorbidities: A Systematic Review of the Clinical and Cost-Effective Literature
What is the Value of Routinely Testing Full Blood Count, Electrolytes and Urea, and Pulmonary Function Tests Before Elective Surgery in Patients with No Apparent Clinical Indication and in Subgroups of Patients with Common Comorbidities: A Systematic Review of the Clinical and Cost-Effective Literature.
Health Technology Assessment, No. 16.50.
Czoski-Murray C, Jones ML, McCabe C, et al.
© 2012, Crown Copyright.

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