Your symptoms and the physical examination may give your doctor enough information to diagnose the problem. However, with back pain, your doctor may only be able to tell you that the problem is not serious. If your doctor determines that your back pain is caused by muscle strain, obesity, pregnancy or another cause that is not urgent, you may not need any additional tests. However, if he or she suspects a more serious problem involving your vertebrae or spinal nerves, especially if your back pain has lasted longer than 12 weeks, you may need one or more of the following tests:
Many sewage treatment plants use centrifugal pumps to transfer the nitrified mixed liquor from the aeration zone to the anoxic zone for denitrification. These pumps are often referred to as Internal Mixed Liquor Recycle (IMLR) pumps. IMLR may be 200% to 400% the flow rate of influent wastewater (Q.) This is in addition to Return Activated Sludge (RAS) from secondary clarifiers, which may be 100% of Q. (Therefore, the hydraulic capacity of the tanks in such a system should handle at least 400% of annual average design flow (AADF.) At times, the raw or primary effluent wastewater must be carbon-supplemented by the addition of methanol, acetate, or simple food waste (molasses, whey, plant starch) to improve the treatment efficiency. These carbon additions should be accounted for in the design of a treatment facility's organic loading. 
Other symptoms may accompany liver pain. The following are some of the possibilities ( some of these, found with liver discomfort, may indicate a serious condition):
Portal hypertension ; breathing troubles ; eating disorders; exhaustion ; itching ; jaundice ; pain when breathing or coughing; right shoulder pain; swollen testes
Liver pain and abdominal pain in general are sometimes confused with each other. For reference purposes on this site, all upper-right abdominal pain is considered as potentially being liver pain. A doctor or medical professional may be able to determine the difference between particular types of pain in the abdomen, and whether they are related to the liver itself. Kidney pain is distinguished as it is located below the liver. Pancreas pain is also distinct, as it is also underneath.
Excessive drinking, or alcohol abuse, is commonly associated with liver pain. However, such pain as a symptom after drinking may also imply another underlying cause (such as hepatitis), which could itself be caused or worsened by the alcohol.
Diagnosis and treatment
A doctor may use some of the other present symptoms to assist in making a diagnosis of the liver pain cause. Treatment methods that may be used vary based on the diagnosis of the underlying cause. You can learn more about the particular potential causes mentioned on this site. Liver pain treatment methods may also include symptomatic options to relieve the pain and other symptoms experienced by the patient.