A platelet aggregation test checks how well your platelets clump together to form blood clots. Platelets are a type of blood cell. They help form blood clots by sticking together. A clot is what stops ...

Proteins circulate throughout your blood to help your body maintain fluid balance. Albumin is a type of protein the liver makes. It’s one of the most abundant proteins in your blood. You need a proper ...

A urine sodium test checks the amount of sodium in a sample of your pee to see whether it’s at a normal level. Having too much or too little sodium can mean there’s an issue with your kidneys or ...