00
Correct
00
Incorrect
00 : 00 : 00
Session Time
00 : 00
Average Question Time ( Mins)
Retry this test Dashboard

  • Question 1 - The position of the kidneys besides the vertebral column retroperitoneally spans levels: ...

    Correct

    • The position of the kidneys besides the vertebral column retroperitoneally spans levels:

      Your Answer: T12 – L3

      Explanation:

      The asymmetry within the abdominal cavity, caused by the position of the liver, typically results in the right kidney being slightly lower and smaller than the left, and being placed slightly more to the middle than the left kidney. The left kidney is approximately at the vertebral level T12 to L3, and the right is slightly lower.

    • This question is part of the following fields:

      • Medicine
      • Renal
      20.7
      Seconds

  • Question 2 - The ENaC Transporter occurs in which part of the renal tubule? ...

    Incorrect

    • The ENaC Transporter occurs in which part of the renal tubule?

      Your Answer: Apical surface of proximal tubule

      Correct Answer: Collecting duct

      Explanation:

      The epithelial sodium channel (ENaC) is a membrane-bound ion channel that is selectively permeable to Na+ ions. It is involved primarily in the reabsorption of sodium ions at the collecting ducts of the kidney’s nephrons.

    • This question is part of the following fields:

      • Medicine
      • Renal
      20.3
      Seconds

  • Question 3 - Using the Cockcroft-Gault formula, what will the estimated creatinine clearance be of a...

    Correct

    • Using the Cockcroft-Gault formula, what will the estimated creatinine clearance be of a 55 year old male who weighs 75kg and has a serum creatinine of 150mg/dL?

      Your Answer: 0.59ml/min

      Explanation:

      A commonly used surrogate marker for estimate of creatinine clearance is the Cockcroft-Gault (CG) formula, which in turn estimates GFR in ml/min:CCr = [(140-age) x Mass(kg)]/[72 x serum creatinine (mg/dL)](multiply by 0.85 for women)Therefore CCr = (85 x 75)/(72 x 150) = 0.59

    • This question is part of the following fields:

      • Medicine
      • Renal
      152.8
      Seconds

  • Question 4 - Where are the principal cells found in the kidney? ...

    Incorrect

    • Where are the principal cells found in the kidney?

      Your Answer: Proximal convoluted tubule

      Correct Answer: Collecting ducts

      Explanation:

      A kidney collecting duct cell can be of two different cell types:Principal cellsIntercalated cells

    • This question is part of the following fields:

      • Medicine
      • Renal
      7.8
      Seconds

  • Question 5 - Where is angiotensinogen produced? ...

    Incorrect

    • Where is angiotensinogen produced?

      Your Answer: Lungs

      Correct Answer: Liver

      Explanation:

      Angiotensin is a peptide hormone that causes vasoconstriction and a subsequent increase in blood pressure. Angiotensin also stimulates the release of aldosterone from the adrenal cortex. Aldosterone promotes sodium retention in the distal nephron, in the kidney, which also drives blood pressure up. It is derived from the precursor molecule angiotensinogen, a serum globulin produced in the liver.

    • This question is part of the following fields:

      • Medicine
      • Renal
      6
      Seconds

  • Question 6 - If UA = concentration of A in urine, V = urine flow per...

    Incorrect

    • If UA = concentration of A in urine, V = urine flow per unit time, and PA = arterial plasma level of A, renal clearance of A is equal to?

      Your Answer: (UA/PA) x V

      Correct Answer: (UA x V)/PA

      Explanation:

      Renal clearance = [Urine concentration (UA) x Urine flow (V)]/[Plasma concentration (PA)]

    • This question is part of the following fields:

      • Medicine
      • Renal
      3380.2
      Seconds

  • Question 7 - Erythropoietin is synthesized by which cells of the nephron? ...

    Incorrect

    • Erythropoietin is synthesized by which cells of the nephron?

      Your Answer: Glomerular epithelial cells

      Correct Answer: Tubular interstitial cells

      Explanation:

      Erythropoietin is produced by interstitial fibroblasts in the kidney in close association with peritubular capillary and proximal convoluted tubule. It is also produced in perisinusoidal cells in the liver. While liver production predominates in the fetal and perinatal period, renal production is predominant during adulthood.

    • This question is part of the following fields:

      • Medicine
      • Renal
      11
      Seconds

  • Question 8 - Erythropoietin is synthesized by which cells of the nephron? ...

    Correct

    • Erythropoietin is synthesized by which cells of the nephron?

      Your Answer: Tubular interstitial cells

      Explanation:

      Erythropoietin is produced by interstitial fibroblasts in the kidney in close association with peritubular capillary and proximal convoluted tubule. It is also produced in perisinusoidal cells in the liver. While liver production predominates in the fetal and perinatal period, renal production is predominant during adulthood.

    • This question is part of the following fields:

      • Medicine
      • Renal
      3.1
      Seconds

  • Question 9 - What is the most important determinant of ECF volume? ...

    Correct

    • What is the most important determinant of ECF volume?

      Your Answer: The amount of sodium in the ECF

      Explanation:

      The volume of the ECF is determined primarily by the total amount of osmotically active solute in the ECF. The composition of the ECF is discussed in Chapter 1. Because Na+ and Cl− are by far the most abundant osmotically active solutes in ECF, and because changes in Cl− are to a great extent secondary to changes in Na+, the amount of Na+ in the ECF is the most important determinant of ECF volume.

    • This question is part of the following fields:

      • Medicine
      • Renal
      7.3
      Seconds

  • Question 10 - Which of the following stimulate the release of aldosterone from the adrenal cortex?...

    Incorrect

    • Which of the following stimulate the release of aldosterone from the adrenal cortex?

      Your Answer: Renin

      Correct Answer: Angiotensin 2

      Explanation:

      Angiotensin II also stimulates the secretion of the hormone aldosterone from the adrenal cortex. Aldosterone causes the renal tubules to increase the reabsorption of sodium and water into the blood, while at the same time causing the excretion of potassium (to maintain electrolyte balance).

    • This question is part of the following fields:

      • Medicine
      • Renal
      15.8
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Medicine (4/10) 40%
Renal (4/10) 40%
Passmed
Retry this test Dashboard