The treatment whereby waste materials are separated from the blood by a machine is called dialysis extracorporeal shock wave lithotripsy urinary catheterization voiding cystourethrogram 2. a patient's lab report has the abbreviations suggesting that he has recently undergone lipid tests. aed and icd std and sti hdl and ldl 99m sestamibi and ercp

1.The treatment whereby waste materials are separated from the blood by a machine is called  dialysis. It is a treatment that filters and purifies the blood using a machine

2.A patient's lab report has the abbreviations HDL and LDL, suggesting that he has recently undergone lipid tests. HDL stands for high-density lipoprotein, while LDL stands for low-density lipoprotein (LDL). 

Nimbostratus is the correct answer.
explanation: nimbostratus clouds are the type of clouds that are mostly likely present on gray, rainy day. these clouds produce continuous rain, snow and there is no thundering or lightening either.