Indications for terminating pediatric exercise testing before reaching maximal voluntary capacity level

Decrease in heart rate with increasing workload associated with extreme fatigue, dizziness, or other symptoms suggestive of insufficient cardiac output

Failure of heart rate to increase with exercise, and extreme fatigue, dizziness, or other symptoms suggestive of insufficient cardiac output

Progressive fall in systolic blood pressure with increasing workload

Severe hypertension (ie, >250 mmHg systolic or >125 mmHg diastolic), or blood pressures higher than can be measured by the laboratory equipment

Dyspnea that the patient finds intolerable

Symptomatic tachycardia that the patient finds intolerable

Progressive fall in oxygen saturation to <90% or a 10-point drop from resting saturation in a patient who is symptomatic

Presence of ≥3 mm flat or downward sloping ST-segment depression

Increasing ventricular ectopy with increasing workload, including a >3-beat run

Patient requests termination of the study

Source: Paridon SM, Alpert BS, Boas SR, et al. Clinical stress testing in the pediatric age group: A statement from the American Heart Association Council on Cardiovascular Disease in the Young, Committee on Atherosclerosis, Hypertension, and Obesity in Youth. Circulation 2006; 113:1905.

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Indications for terminating pediatric exercise testing before reaching maximal voluntary capacity level