Definition of Acute tubular necrosis. Acute tubular necrosis: A severe form of acute renal failure that develops in people with severe illnesses (such as sepsis) or with very low blood pressure. Patients may need dialysis. Kidney function often improves if the underlying disease is successfully treated. Abbreviated ATN.
Buying a tow dolly can cost  $1,000-$4,500, depending on towing capacity, size, quality of materials and other options. For example, the Roadmaster RM3477 Tow Dolly with built-in electric brakes sells for $1,600 -$2,000, and can tow a vehicle weighing up to 4,250 pounds.
This narrowed us down to towing 4-down or going with a tow dolly. In a nutshell, the biggest pros for towing 4 down are the simplicity and space concerns. The biggest pros for a tow dolly are lower cost and flexibility in the cars that can be towed. The biggest cons to towing 4 down are the higher cost of purchase/installation and the need to modify your tow vehicle.