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).
Blanch in boiling water for 2 minutes; plunge into cold water; drain and dry well with paper towels. Fry in hot oil (375Â°) until very light brown. Drain on paper towels until cool. Pack into freezer containers or bags. Later, fry frozen potatoes in deep fat preheated to 375Â° until crisp and golden brown.lanch in boiling water for 2 minutes; plunge into cold water; drain and dry well with paper towels. Fry in hot oil (375Â°) until very light brown. Drain on paper towels until cool. Pack into freezer containers or bags. Later, fry frozen potatoes in deep fat preheated to 375Â° until crisp and golden brown.