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Normal urine volume correct answers mL/day Polyuria correct answers >2500 mL/day Diabetes insipidus/mellitus, caffeine, diuretics Oliguiria correct answers <400 mL/day Dehydration, vomiting, diarrhea Anuria correct answers No urine output Kidney damage, decreased blood flow to ki...

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  • October 3, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • normal urine volume

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  • MLS ASCP - UA/BF
  • MLS ASCP - UA/BF

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MLS ASCP - UA/BF || with 100% Verified Solutions.
Normal urine volume correct answers 1200-1500 mL/day

Polyuria correct answers >2500 mL/day
Diabetes insipidus/mellitus, caffeine, diuretics

Oliguiria correct answers <400 mL/day
Dehydration, vomiting, diarrhea

Anuria correct answers No urine output
Kidney damage, decreased blood flow to kidneys

Aldosterone correct answers Made in adrenal cortex; increases reabsorption of sodium by kidney
tubules

Arginine Vasopressin (AVP)/Antidiuretic Hormone (ADH) correct answers Made in posterior
pituitary; reabsorption of water from distal tubules
Deficiency = diabetes insipidus

Effects of urine sitting at RT for more than 1-2 hours correct answers INCREASE - Nitrite, pH,
turbidity (bacteria)

DECREASE - Glucose, ketones, bilirubin (exposed to light), urobilinogen, cells and casts (lysis)

Color change - due to oxidation/reduction of metabolites

Fruity odor correct answers Ketones, diabetes

Ammonia odor correct answers Old urine

Mousy odor correct answers Phenylketonuria (PKU)

Maple syrup odor correct answers Maple syrup urine disease (branched chain aminoaciduria)

Red color urine correct answers Hemoglobin, RBCs, myoglobin, porphyrins

Red-brown color urine correct answers Myoblogin

Amber/brown/orange urine correct answers Bilirubin, biliverdin, uroblilin, drug

Bright yellow color urine correct answers Vitamin C

Brown-black color urine correct answers Melanin, methemoglobin (oxidized RBCs)

Blue color urine correct answers Indican (Tryptophane Metabolic Disorder)

, Green color urine correct answers Pseudomonas, old urine

Port wine color urine correct answers Porphyrins

Urine pH correct answers 2 indicators provide color change
Alkaline may indicate old urine or after meal

Protein in urine correct answers Protein indicator of errors (albumin) pH = 3.0
Yellow to green
Confirm with 3% sulfosalicylic acid

False pos = alkaline urine
False neg = high salt

BEST single indicator of renal abnormality
Low-molecular-weight proteins = glomerular damage
Diabetes Mellitis - microalbuminemia

Glucose in urine correct answers Glucose oxidase (double sequential enzyme)
N = 160-180 mg/dL

False pos = bleach
False neg = ascorbic acid, ketones, high SG

Diabetes Mellitis
Urine glucose POS, fasting glucose N = renal glycosuria

Copper reduction test correct answers Clinitest - Benedict's copper
Glucose and other reducing sugars
Newborns - testing galactose

Reagent strip NEG, copper POS = non-glucose sugar
Reagent strip POS, copper NEG = glucose

Ketones in urine correct answers Sodium Nitroprusside + ketones = purple
Confirm with Acetest tablet
False pos = Levapoda, pigmented urine
False neg = ascorbic acid
Uncontrolled diabetes mellitus, dehydration

Creatinine Clearance correct answers Efficiency of the kidneys in removing creatinine from the
blood

24-hour urine
N = 120 mL/min (adults)

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