Gfr /renal blood flow MCQ 13+

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• The renin angiotensin aldosterone system regulates
  ক

  Blood pressure

  খ

  Fluid volume

  গ

  Sodium balance

  ঘ

  Nitrogen balance

  ঙ

  Protein excretion
• GFR is increased when
  ক

  Glomerular hydrostatic pressure is increased

  খ

  Renal blood flow is increased

  গ

  Glomerular capillary hydrostatic pressure is increased

  ঘ

  Plasma oncotic pressure is increased

  ঙ

  Tubular hydrostatic pressure is increased
• When a patient's mean arterial blood pressure falls by 50%
  ক

  There is an increase in circulatory aldosterone

  খ

  Renal vasoconstriction occurs

  গ

  Urinary output may cease

  ঘ

  Renal blood flow falls by 10%

  ঙ

  Glomerular filtration falls by about 50 %
• Factors increasing GFR are
  ক

  Increase in glomerular capillary hydrostatic pressure

  খ

  Afferent arteriolar dilatation

  গ

  Efferent arteriolar constriction

  ঘ

  Sympathetic stimulation

  ঙ

  Increase in plasma colloid osmotic pressure
• Capillary filtration rate tends to increase when there is an increase in
  ক

  Capillary hydrostatic pressure

  খ

  Interstitial fluid colloidal osmotic pressure

  গ

  Plasma colloidal osmotic pressure

  ঘ

  Total peripheral resistance

  ঙ

  Interstitial fluid hydrostatic pressure
• The renin angiotensin-aldosterone system regulates
  ক

  Potassium balance

  খ

  Sodium balance

  গ

  Fluid volume

  ঘ

  Blood pressure

  ঙ

  Nitrogen balance
• Factors increasing glomerular filtration rate
  ক

  Increased filtration coefficient

  খ

  Increased plasma colloidal osmotic pressure

  গ

  Sympathetic stimulation

  ঘ

  Dehydration

  ঙ

  Increased arterial blood pressure
• GFR is increased by
  ক

  Vasodilatation of afferent arteriole

  খ

  Moderate vasoconstriction of efferent arteriole

  গ

  Increased albumin concentration in plasma

  ঘ

  Increased tubular hydrostatic pressure

  ঙ

  Decreased blood pressure
• Factors that cause an increase in both glomerular Filtration rate and renal plasma flow are
  ক

  Dilatation of afferent arteriole

  খ

  An increase in filtration coefficient

  গ

  Prostaglandins E2

  ঘ

  Ureteral stone

  ঙ

  Constriction of the efferent arteriole
• Autacoids controlling renal blood flow and GFRinclude
  ক

  Nitric oxide

  খ

  Prostaglandin

  গ

  Angiotensin II

  ঘ

  Norepinephrine

  ঙ

  Epinephrine
• Factors influencing renin release are
  ক

  Decreased blood pressure

  খ

  Salt depletion

  গ

  Potassium

  ঘ

  Vasopressin

  ঙ

  AngiotensinII
• Renin secretion is increased in
  ক

  Sodium depletion

  খ

  Diuretic therapy

  গ

  Renal artery stenosis

  ঘ

  Essential hypertension

  ঙ

  Over hydration