MLT 111 Chapters 2 & 3 Exam

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Renal function and intro to Urinalysis


Questions and Answers
  • 1. 
    The renal medulla is composed of tissue called _________.
    • A. 

      Renal pyramids

    • B. 

      Nephrons

    • C. 

      Macula densa

    • D. 

      Renal pelvis

  • 2. 
    Which is found in the highest concentration in the urine? 
    • A. 

      Uric acid

    • B. 

      Urea

    • C. 

      Glucose

    • D. 

      Creatinine

  • 3. 
    Juxtaglomerular cells combine with ________ cells to form the juxtaglomerular apparatus in the kidney. 
    • A. 

      Macula densa

    • B. 

      Renal pelvis

    • C. 

      Nephron

    • D. 

      Bowman's capsule

  • 4. 
    Which of the folllowing match the definition of "poor output of urine"? 
    • A. 

      Oliguria

    • B. 

      Pyruia

    • C. 

      Albuminuria

    • D. 

      Diuresis

  • 5. 
    Capillary loops located in the medulla of the kidneys are also known as ___________. 
    • A. 

      Vasa recta

    • B. 

      Urea collectors

    • C. 

      Capillary tuft

    • D. 

      Trigone

  • 6. 
    A function of the descending loop of Henle is the___________. 
    • A. 

      Re-absorption of sodium ions

    • B. 

      Re-absorption of water by osmosis

    • C. 

      Secretion of hydrogen ions

    • D. 

      Secretion of potassium ions

  • 7. 
    When glucose is found in the urine it is called _______. 
    • A. 

      Glucosuria

    • B. 

      Uremia

    • C. 

      Glucose intolerance

    • D. 

      Ureteritis

  • 8. 
    ADH has which of the following effects on the distal convoluted tubule? 
    • A. 

      Decrease water re-absorption

    • B. 

      Increase water re-absorption

    • C. 

      Decrease urine concentration

    • D. 

      Increase urine volume

  • 9. 
    Each kidney contains approximately _______ nephrons. 
    • A. 

      10 million

    • B. 

      1 million

    • C. 

      100,000

    • D. 

      10,000

  • 10. 
    Which is not a funtion of the kidney? 
    • A. 

      Conjugation of bile

    • B. 

      Excretion of water

    • C. 

      Conservation of water

    • D. 

      Excretion of wastes

  • 11. 
    The function(s) of the kidney in regard to the blood is ______.  
    • A. 

      To maintain fluid volume

    • B. 

      To maintain solute concentration

    • C. 

      To eliminate waste

    • D. 

      All of the above

  • 12. 
    The basic functional unit of the kidney is the _____.  
    • A. 

      Nephron

    • B. 

      Collecting tubule

    • C. 

      Loop of Henle

    • D. 

      Meatus

  • 13. 
    During tubular re-absorption tje movement of a solute attached to a carrier protein _________.
    • A. 

      Is called passive transport

    • B. 

      Requires little or no energy

    • C. 

      Is called active transport

    • D. 

      Only occurs in the glomerulus

  • 14. 
    Bowman's capsule and both convoluted tubules are located in the _____. 
    • A. 

      Cortex

    • B. 

      Renal calyx

    • C. 

      Medulla

    • D. 

      Renal pelvis

  • 15. 
    The Loop of Henle and the collecting tubules are located in the ______. 
    • A. 

      Cortex

    • B. 

      Medulla

    • C. 

      Renal pelvis

    • D. 

      Renal calyx

  • 16. 
    The structures which transport urine from the kidneys to the bladder are _____. 
    • A. 

      Ureters

    • B. 

      Renal veins

    • C. 

      Urethras

    • D. 

      Renal calyx

  • 17. 
    Blood enters the glomerulus through the _____. 
    • A. 

      Afferent arteriole

    • B. 

      Aorta

    • C. 

      Efferent arteriole

    • D. 

      Juxtaglomerular apparatus

  • 18. 
    The glomerular filtrate rate is _____. 
    • A. 

      125 ml/min

    • B. 

      1250 ml/min

    • C. 

      1,000,000 ml/min

    • D. 

      12 ml/min

  • 19. 
    Reabsorption is the ______. 
    • A. 

      Elimination of wastes through the meatus

    • B. 

      Taking back of needed substances from the tubules into the body

    • C. 

      Elimination of wastes from capillaries into the lumen

    • D. 

      Elimination of large molecular weight proteins through the efferent arterioles

  • 20. 
    The plasma concentration of a substance at which active transport stops and increased amounts are excreted in the urine is called the_______
    • A. 

      Renal threshold

    • B. 

      Maximal reabsorptive capacity

    • C. 

      Renal concentration

    • D. 

      Osmotic gradient

  • 21. 
    The fluid leaving the glomerulus has a specific gravity of 1.010  
    • A. 

      True

    • B. 

      False

  • 22. 
    The hormone aldosterone is responsible for sodium retention. 
    • A. 

      True

    • B. 

      False

  • 23. 
    The normal serum osmolarity is 50 - 100 mOsm.
    • A. 

      True

    • B. 

      False

  • 24. 
    Disposable containers with a capacity of 25 ml or less are recommended for the collection of specimens for routine urinalysis. 
    • A. 

      True

    • B. 

      False

  • 25. 
    A properly labelled urine specimen for routine urinalysis delivered to the lab in a gray top blood collection tube can be tested. 
    • A. 

      True

    • B. 

      False

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