SiPhox’s photonic chips are each about the size of two grains of rice side by side. Each home blood test comes in a plastic cartridge that contains one such chip. Each chip has an array of tiny ...

A blood test can reveal your mean corpuscular hemoglobin (MCH) level. Mean corpuscular hemoglobin (MCH) is a measurement of the average amount of hemoglobin within a red blood cell. MCH that's ...