Question: what are ldl and hdl pltw?
Answer: LDL and HDL Cholesterol: "Bad" and "Good" Cholesterol. Related Pages. Cholesterol travels through the blood on proteins called “lipoproteins.” Two types of lipoproteins carry cholesterol throughout the body: LDL (low-density lipoprotein), sometimes called “bad” cholesterol, makes up most of your body's cholesterol.