Yes: a urine test for albumin and a blood test for creatinine. The results of the creatinine blood test should be used to estimate glomerular filtration rate (GFR), which is a measure of your level of kidney function.
Hives and swelling are considered to be different expressions of the same problem. Hives occur mostly on the arms, legs and torso, while swelling occurs around the lips, eyes, hands feet and genitals and can involve the tongue and throat. It is simply that the skin and mucous membranes in different areas swell in different ways. How long the problem has been ongoing is also important.
Fresh foods cause hives more often than cooked foods. Certain food additives and preservatives may also be to blame. Drugs that can cause hives and angioedema include aspirin and other NSAIDs (such as ibuprofen), high blood pressure medications (such as ACE inhibitors), and painkillers such as codeine. Chronic urticaria and/or angioedema are hives or swelling that lasts more than 6 weeks.