Random Urine Collection for Urinalysis. Random urine samples are used for urinalysis, which can screen and diagnose metabolic disorders and urinary tract infections. Your doctor may order urinalysis to determine, for example, the cause of bloody urine, abdominal pains or burning sensations associated with urination.
1 Place potato slices into a large bowl of cold water as you slice. 2  Drain, and rinse, then refill the bowl with water, and add the salt. 3  Let the potatoes soak in the salty water for at least 30 minutes. 4  Drain, then rinse and drain again. 5  Heat oil in a deep-fryer to 365 degrees F (185 degrees C).
1 Cover peeled, cut potatoes with cold, salted water, simmer until tender: Place the peeled and cut potatoes into a medium saucepan. Add cold water to the pan until the potatoes are covered by at least an inch. Add a half teaspoon of salt to the water. Turn the heat on to high, and bring the water to a boil. Reduce the heat to low to maintain a simmer, and cover. Cook for 15 to 20 minutes, or until you can easily poke through them with a fork.