Pneumothorax - In a pneumothorax, air collects in the pleural cavity. It may be caused by trauma to the chest, chest surgery, and COPD among other causes. When a pneumothorax is small, it may simply be observed to see if the air is reabsorbed.
This ratio is determined by dividing the HDL cholesterol into the total cholesterol. If a person has a total cholesterol of 200 mg/dL and an HDL cholesterol of 40 mg/dL, his or her total/HDL cholesterol ratio would be 5:1. The goal is to keep this ratio below 5:1, with the ideal being below 3.5:1.his ratio is determined by dividing the HDL cholesterol into the total cholesterol. If a person has a total cholesterol of 200 mg/dL and an HDL cholesterol of 40 mg/dL, his or her total/HDL cholesterol ratio would be 5:1. The goal is to keep this ratio below 5:1, with the ideal being below 3.5:1.
The recommended HDL level is higher in women than men. Aim to keep your total cholesterol level less than 200 mg/dL and LDL cholesterol less than 100 mg/dL.The desired HDL level is greater than 50 mg/dL and levels greater than 60 mg/dL are considered protective against heart disease.here are two different types of lipoproteins: low density lipoproteins, or LDL, and high density lipoproteins, or HDL. LDL cholesterol is considered bad cholesterol.. Having high levels in your body can cause LDL cholesterol to build up in the body's arteries, increasing the risk for cardiovascular disease.