Urine Analysis and Laboratory Tests

The data of Urine analysis usually taken are dividedWBCs, pus or fats in Urine.
into two; qualitative and quantitative data of UrineQuantitative data of Urine Laboratory tests
laboratory tests. As their names imply, qualitativeDiuresis means the process of Urine production. The
tests is to test for the qualities of the Urine such asUrine-volume (UV per 24 hours) is its laboratory
colour, transparency, etc, while quantitative test, tryreflection. Its meanings depend on age.
to find the amounts of some indexes in the UrinePathological changes of Urine volume
such as volume, specific gravity, amount of• Poliuria is diagnosed when the urine volume
pathologic components of Urine (blood, proteins,exceeds the normal ranges in 2 times and more. It is
creatinine, etc).the often sign of disorders with other systems
Qualitative data of Urine laboratory testsdecreasing of cardiac edema, diabetes mellitus,
Colour of Urinediabetes insipiduc). Renal poliutia develops in case of
• In the first day of child's Life, Urine is colorlessback progress of nephritic edema, chronic renal
• On the 2nd-4th days- dark-reddish, because bigfailure.
quantity of Urea is excreted.• Oliguria means the decreasing of daily urine
• In breast fed infants the urine is almost colorlessvolume to of age ranges and less. Renal Oliguria is
until they start to drink fruit juices and to eat otherone of the most significant manifestations of renal
foods at the age of 4-6 monthsfailure. There also can be extra-renal causes of
• In formula fed infants, all children and grown-ups,Oliguria such as massive profuse bleeding, diarrhea,
the urine is yellow like straw.poisoning, cardiax failure, shock. It is very important
Changes of Urine color can be physiological. Forto identify the reason of Oliguria because the
example;therapeutic plans can be quite different when the
• Colorless urine is excreted when a person drinksUrine volume decrease less than 5% of normal data
a lot of fluidsor there is no Urine per whole day. It is one of the
• Urine acquires Orange color when the foodmost dangerous conditions for the child's life and
contains a lot of carotene (carrot);needs the emergency medical help.
• Urine will be pink after eating red-beet;• Anuria can be
• Some medicines influence the Urine colour. SO,1. renal-the kidneys don't form the urine due to
rifampicin causes the red color of Urine, analginum andconsiderable damage of their tissues.
sulfacylamides-pink, mitroxolinum-saffron-yellow.2. postrenal (mechanical)-the Urine is produced, but it
Some Urine discoloration is of diagnostic value in casedoesn't go into the bladder because of upper tract or
of Kidney disorders:bladder neck obstruction.
• Dark-brown Urine is a pathognomic symptom of• Nocturia, the normal correlation of daytime and
virus hepatitis; the cause of such color is big amountnighttime Urine Volume is 2:1. That means that
of bile pigments hyperbilirubinuria); characteristic sign isbecause of bigger fluid intake and physical activity,
forming of yellowish foam after shaking such Urine.Urine excretion is more intensive during daytime. If
• Smoky brown Urine, which resembles tea orthe night Urine volume is bigger, it is the
cola, is formed in case of nephron damage, whenmanifestation of decreased renal function.
RBCs pass through the basal membrane of glomerularPh of Urine
capsule and losses the hemoglobin. It is the main signThis sign depends on age, food habits, prescribed
of acute poststreptococcal glomerulonephritismedicines and differs in different people as well as in
• Bright red color can be found when "fresh" RBCsone person in different periods.
pass into urine in case of trauma, kidney tuberculosis,Specific gravity
crystals, cystitis, urethritis, renal tumor.It is the concentration of electrolytes and other
• Dark-violet discoloration is the sign ofsubstances dissolve in Urine. Decreasing of specific
considerable RBCs hemolysis in case of poisoning,gravity can be seen in case of drinking a lot of fluids,
Rh-conflict, mistakes during blood transfusion etc.severe renal failure, back progress of edema,
Transparencediabetes insipidus. Increasing is observed at Oliguria,
The Urine can be cloudy only in newborn child for 2-3diabetes mellitus, excretion of marked amount of
days after birth. After that each healthy personprotein. Excretion of 0.1g of glucose per 11 of Urine
excrete transparent Urine. Cloudy hazy, darklycauses enlargement of specific gravity on 0.004; 0.4
opalescent Urine can be found in case of Urinaryof protein-on 0.001.
tract infection, enlarged amount of crystals, RBCs or