What is a Cc of Blood? A "cc" of blood is 1 cubic centimeter of blood. A cubic centimeter is equivalent to 1 milliliter. The common human has about 5,000 cubic centimeters of blood. Blood is a necessary aspect within the human body that distributes nitrogen, BloodVitals test oxygen and other nutrients to vital organs. Blood is composed of plasma and blood cells. Plasma comprises proteins that help in blood clotting during injury. About half of blood quantity is made up of blood cells. Red blood cells carry oxygen to tissues and organs, white blood cells struggle infections and platelets assist in blood clotting. The American Red Cross collects roughly 15.7 million blood donations yearly within the United States. About 1 pint, or 473 cubic centimeters, of blood is collected throughout the donation. In accordance with the American Red Cross, one blood donation can save up to a few lives, as pink blood cells, platelets and plasma can be utilized individually from the blood.

The Apple Watch Series 6 feels prefer it has perfected lots of the features I preferred about its predecessor. It has a brighter all the time-on show, a extra powerful processor, quicker charging and two new colorful options to select from. But the characteristic I used to be most excited to check out was its new sensor that measures oxygen saturation within the blood (aka BloodVitals SPO2) with the tap of a display. As somebody who panic-bought a pulse oximeter in the beginning of the coronavirus pandemic and still checks her levels at the primary sign of a cough, the thought of having one strapped to my wrist at all times was sufficient to pique my curiosity. But unlike the ECG function on the Apple Watch, which has been tried, examined and cleared by the US Food and Drug Administration, together with the irregular heart rhythm notifications, SpO2 on the Apple Watch still seems to be in its early phases. Navigating all this new data may be daunting for anybody who's not a medical professional.

I bought an FDA-cleared pulse oximeter, the system medical doctors use to measure SpO2 in your fingertip, as a precaution when coronavirus circumstances in the US began to climb. Having low blood oxygen ranges would not guarantee you've COVID-19, however it's certainly one of the foremost signs of the illness. I had learn horror tales of people who waited too long to go to the hospital and had died of their sleep because they did not understand their ranges had dipped in a single day. You should all the time check with a physician if you are experiencing shortness of breath (another symptom of COVID-19), even if a pulse oximeter says you are in a healthy vary, but I discovered consolation in realizing that I could at the very least use it as a reference if I ever skilled shortness of breath. That's not one thing you are able to do with the Apple Watch -- Apple says it must be used for wellness functions only and never as a medical gadget, meaning you'll should take the results with a grain of salt and should not use it to display for any kind of disease, BloodVitals test which is what I had been hoping to get out of it.

But there could also be different advantages of having it strapped on your wrist always. Much like a pulse oximeter, the Series 6 uses purple and infrared light from its new sensor to find out the proportion of oxygen in the blood. But as a substitute of shining the light through your fingertip, it makes use of the sunshine that is mirrored again from the blood vessels in your wrist to find out your oxygen levels based on the colour of your blood. Through the setup process you are asked whether or not you need to activate SpO2 monitoring, which I did, but you'll be able to always return and disable it in the settings after the actual fact. The first thing I did after strapping on the Watch was open the Blood Oxygen app. It offers you just a few tips about the way to get the perfect result and you should relaxation your arm on a table or flat floor whereas the Watch is taking a reading.

Then the 15-second countdown begins and you are performed -- easy and painless. I received a 95% on my first read, which was lower than what I'm used to from my pulse oximeter. Anything above 90% is mostly thought-about by clinicians to be inside a healthy range, but normally, greater is healthier. I examined it a few extra times and received barely different outcomes within a number of share factors depending on whether or not I used to be fully nonetheless and silent during the BloodVitals test, the place I had the watch positioned on my wrist and the way tight the strap was. There are many factors that may have an effect on a studying, equivalent to skin temperature or the place of the sensors on the body. Side-by-side with my pulse oximeter, the Apple Watch was typically off by about one or two factors, however typically spot on. What was extra fascinating to me was the BloodVitals SPO2 knowledge that collected over time within the Health app .