What is dangerously high cholesterol?
A normal level is below 150 mg/dL; if your level is approaching 200 mg/dL, that is borderline high; and anything over 200 mg/dL is high and leaves you at greater risk for cardiovascular disease, per the Cleveland Clinic. A triglyceride level of 500 mg/dL or higher is considered dangerously high.
Is a cholesterol of 6.4 high?
High cholesterol levels are considered: too high: between 5 and 6.4mmol/l. very high: between 6.5 and 7.8mmol/l. extremely high: above 7.8mmol/l.