Final answer:
The nurse checked my pulse, and it was fast because I had run up the steps. The statement is true.
Step-by-step explanation:
The statement 'The nurse checked my pulse, and it was fast because I had run up the steps.' is True. When you run up the steps or engage in any form of physical activity, your heart rate increases. The heart beats faster to pump more oxygen-rich blood to your muscles to meet their increased demand for oxygen. This rapid heart rate is reflected in a fast pulse.