[Instant Help From 10$/Pg] Lipid Panel Reveals Total

Answer with at least 6 sentences, one scholarly reference ( discussion doesn’t have to be long just enough to get the question answered ) 

Scenario 1: Myocardial Infarction

CC: “I woke up this morning at 6 a.m. with numbness in my left arm and pain in my chest. It feels tight right here (mid-sternal).” “My dad had a heart attack when he was 56-years-old and I am scared because I am 56-years-old.” 

HPI: Patient is a 56-year-old Caucasian male who presents to Express Hospital  Emergency Department with a chief complaint of chest pain that radiates down his left arm. He states this started this morning and has been getting worse, pointing to the mid-sternal area, “it feels like an elephant is sitting on my chest and having a hard time breathing”. He rates the pain as 9/10. Nothing has made the pain better or worse. He denies any previous episode of chest pain. Denies nausea, or lightheadedness. Nitroglycerin 0.4 mg tablet sublingual x 1 which decreased pain to 7/10.

Lipid panel reveals Total Cholesterol 424 mg/dl, high density lipoprotein (HDL) 26 mg/dl, Low Density Lipoprotein (LDL) 166 mg/dl, Triglycerides 702 mg/dl, Very Low-Density Lipoprotein (VLDL) 64 mg/dl

His diagnosis is an acute inferior wall myocardial infarction.

Question:

Which cholesterol is considered the “good” cholesterol and what does it do?