Can a blood test determine the amount of time since last eating?

Patient : On a particular senerio, a young man was found claiming he was stuck in a 15 foot hole in the ground. Rumors spread that it was a hoax. After this young man managed to pull himself out this a 15 foot hole and walk (who knows how many miles) The young man was immediatly taken to a medical facility where they did bloodwork on him. According to the report, he was found to be mildly dehydrated (BTW he was in this hole for 4 days and nights with no water or food)and the report said they confirmed that he had not eaten in four days. My question is this, can a blood test determine the amount of time it has been since you last ate, or will the BW only show that you have low blood sugar?
Doctor :   This question is currently in queue and will be answered shortly by one of our doctors. In the meantime you may browse our library of answered questions by clicking here.

Related Q&A

Q: For the past 2.5 years, I've had a problem with swallowing food and liquids. At first I had difficulty swallowing sol...

Q: My boyfriend for the past 10 days has refused to eat. He is currently living off of Gatorade, Protein Shakes Etc. (dr...

Q: What supplements or otc medicines can i take to increase my appetite? Thanks

Q: My friends think I have an eating disorder. I'm not super skinny and I do have extra weight on me (20 pounds to be e...

Q: I have been suffering from mild nausea for about two months, constantly feeling tired and not hungry or thirsty at al...


Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon