Renal System

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excalibolg
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301761
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Renal System
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2015-04-29 08:47:16
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physiology lf2
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  1. Substance use for glomerular filtration measurment:
    a. Must have the same concentration in plasma and glomerular filtrate
    b. Is completely excreted in one passage through kidney
    c. Must not diffuse through the tubulary wall
    d. Must not be excreted in tubulus
    e. Must not be reabsorbed in tubulus
    all except b
  2. Clearance of inulin is used for measurment of:
    a. Renal blood flow
    b. Diuresis
    c. Tm of inulin
    d. Glomerular filtration
    d
  3. Which of the named substances excretes in a linear relation to its plasmatic concentration?
    a. PAH
    b. Inulin
    c. Glucose
    d. Alanin
    e. Urea
    b
  4. It is true for renal blood flow:
    a. A magnitude is regulated by constrictory nerves
    b. Its autoregulation is important
    c. Is greater in cortex than in medula
    bc
  5. Oxygen consumption in kidney correlates best with:
    a. Tubular secretion
    b. Renal blood flow
    c. Diuresis
    d. Concentration of glucose
    e. Sodium reabsorption
    e
  6. What is the mechanism of secretion of two substances with clearance 0 ml/min or 50 ml/min?
    a. The glomerular filtration only
    b. Glomerular filtration + tubular reabsorption
    c. Glomerular filtration + tubular secretion
    d. Tubular secretion only
    e. Diffusion only
    b
  7. For the calculation of filtration fraction we need to measure:
    a. Mean pressure in glomerular capillaries
    b. Mean pressure in Bowman capsule
    c. Mean pressure in glomerular capillaries and mean pressure in Bowman capsule
    d. Oncotic pressure of blood or plasma
    e. Clearance of inulin
    f. Clearance of PAH
    ef
  8. What percentage of glomerular filtrate reabsorbed in tubules if the plasmatic concentration of inulin is 200 timres higher than concentration in the blood?
    a. O.05%
    b. 50%
    c. 80%
    d. 98%
    e. 99%
    e
  9. The highest concentration if inulin is at:
    a. Bowman capsule
    b. End of proximal tubule
    c. Curvature of long Henle loops
    d. End of distal tubule
    e. End of collecting duct
    e
  10. What is the concentration of sodium in the fluid at the end of proximal tubule in normal man?
    a. 5 mmol/l
    b. 25 mmol/l
    c. 70 mmol/l
    d. 140 mmol/l
    e. 300 mmol/l
    d
  11. What is the cause of the fact that patient with plasma glucose level 13.9 has no glycosuria?a. Patient's diabetes mellitus is complicated with diabetes insipidus
    b. Patient has substantial antidiuresis
    c. The renal blood flow is very high
    d. Tm of glucose is very decreased
    e. There is substantial decrease of glomerular filtration
    e
  12. In which solutes is transport substantially determined by Tm?
    a. Glucose
    b. Urea
    c. PAH
    d. Ammonia
    d. Protein
    ac
  13. Which solutes transport almost explicitly in proximal tubule?
    a. Glucose
    b. Aminoacids
    c. PAH
    d. Bicarbonate
    e. K+
    all except K+
  14. Antidiuretic hormone influences the permeability for water:
    a. In Bowman capsule
    b. In proximal tubule
    c. In the descendent limb of Henle's loop
    d. In distal tubule
    e. In collecting duct
    de
  15. Which of the following isotonic solutes will produce the largest diuresis after infusion of 2 liters of solution?
    a. NaCl
    b. Urea
    c. Glucose
    d. Na2
    e. SO4
    f. Manitol
    g. None of listed
    c
  16. Concentrating kidney in healthy man:
    a. Is under the influence of ADH
    b. Is able to increase the urine concentration to the level of plasma concentration of solutes
    c. Is able to increase the urine concentration to the level four times higher than concentration in plasma
    d. Has osmolality gradient from cortex to papilla
    e. The osmolality is the same in all parts of nephrone and it is similar to the osmolality of urine
    acd
  17. ADH:
    a. Is responsible for the sensation of thirst
    b. Is released by specific releasing hormone
    c. Is produced in pituitary gland
    d. Decreases glomerular filtration rate
    e. Increases the permeability in distal tubule
    e
  18. Which part of nephrone has iowest osmolality in antidiuresis?
    a. Bowman capsule
    b. End of proximal tubule
    c. End of loop of Henle
    d. Beginning of distal tubule
    e. End of distal tubule
    f. Beginning of collecting duct
    d
  19. Increase of excretion of NH3 ions is:
    a. Typical for chronic acidosis
    b. Typical for alkalic urine
    c. Results from increase or uric acid excretion
    d. Results from the increase of urea production in liver
    a
  20. Transport of protons:
    a. Is necessary for bicarbonate reabsorption in tubules
    b. Results in the fact that pH at the end of proximal tubule is about 5
    c. If decreased the reabsorption of sodium in proximal tubule is enhanced
    d. Proton is co-transported with K+ in proximal tubule
    e. Causes that pH of urine may reach 3.5
    a
  21. It is true thatRenin is a vasoconstrictor:
    a. Renin converts angiotensin I to angiotensin II
    b. Decrease of renal blood flow decreases renin secretion
    c. Aldosteron increases secretion of K+ in urine
    d. Angiotensin II increases the vascular peripheral resistance due to capillary constriction
    d

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