Please choose the correct ending to complete the given sentence: Health: [header] How to do a stress test [title] Talk to your doctor about the medications you are on, particularly the heart medications. [step] You may need to stop taking certain prescriptions 2 or 3 days before the test. [title] Avoid eating and drinking 4 to 5 hours before your stress test.

Ending1: [step] Caffeine helps with digesting foods quickly. [title] Don't exercise for more than 2 hours before the test. Ending2: [step] If you have anything in your stomach, the procedure can cause nausea. Most medical professionals do say you can drink water before a testing. Ending3: [step] This may make your symptoms worse or cause you to have changes in your heart rhythm. [title] Don't drink alcohol for longer than 3 days before the test. Ending4: [step] Don't drink any alcohol or caffeinated beverages for over 2 hours. Also, remember to avoid coffee or caffeinated teas.

Answer format: ending1/ending2/ending3/ending4