Spanish to English Medical Medical: Cardiology Stress Test

"Respuesta TA al Ejercicio:
TA normal en reposo - respuesta adecuada;
Dolor de pecho: ninguno;
ST Cambios: ninguna;
Respuesta del RC al ejercicio: apropiada;"

Stress test results. I'm also a bit on the fence about Respuesta TA where I'm assuming that TA probably means arterial tension/blood pressure, but a targeted search also gives the possibility of "telomerase activity" (although it doesn't seem likely to me, and in Spanish, that would normally be abbreviated as AT rather than TA). So, I'm hoping that, if I can figure out the meaning of RC, that will give me a more firm footing with TA as well. Thanks in advance for an insights.