10. If a client has uncontrolled hypertension which elevates MAP (mean arterial pressure) well above 180 mm Hg while capsular pressure (CP) and colloid osmotic pressure (COP) remain unchanged, what will happen, if anything, to the direction of glomerular filtration? Explain your answer making sure to define and discuss the role of all three pressures in NFP (net filtration pressure).

10. If a client has uncontrolled hypertension which elevates MAP (mean arterial pressure) well above 180 mm Hg while capsular pressure (CP) and colloid osmotic pressure (COP) remain unchanged, what will happen, if anything, to the direction of glomerular filtration? Explain your answer making sure to define and discuss the role of all three pressures in NFP (net filtration pressure).

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter14: The Urinary System

Section: Chapter Questions

Problem 9RE

See similar textbooks

Similar questions

The macula densa is/are: present in the renal medulla dense tissue present in the outer layer of the kidney cells present in the DCT and collecting tubules present in blood capillaries.
2. Glomerular filtration is directly proportional to A. Blood cell size B. Hydrostatic pressure C. Osmotic pressure D. The patient’s fluid intake
28. Know the following equation by memory and be able to calculate NFP when given numbers for each of the variables. Practice using the problem below. Net filtration pressure Capillary Hydrostatic Pressure Colloid Osmotic Pressure NFP CHP - OP a. Calculate the NFP if the capillary hydrostatic pressure = 30 mm Hg and osmotic pressure = 17 mm Hg. NFP = -
4. Given the net glomerular filtration pressure of 55 mm Hg, a plasma protein osmotic force (TTGC) = 12 mm Hg, and a fluid pressure in Bowman's space (PBS) = 10 mm Hg, what would be glomerular capillary blood pressure (PGC)? Would filtration be favored under these conditions? How do you know?
4) Measurements in a nephron reveal a glomerular hydrostatic pressure of 69 mm Hg, and a fluid pressure in the Bowman's capsule of 16 mm Hg. Assuming that the plasma colloid osmotic pressure is 33 mm Hg, and that essentially no plasma proteins are filtered by the glomerulus, what is the net glomerular filtration pressure in this case?
Indicate which of the following is (are) being described: angiotensisn II, aldosterone and/or ADH increases blood pressure by direct vasoconstriction (2 answers) stimulates insertion of aquaporins into the collecting duct (1) increases the secretion of the other two (1) acts on the principal cells of the nephron (2 answers) increases Na+ reabsorption by the kidney (1) has its production directly blocked by ACE inhibitors (1) increases water reabsorption by acting on kidney collecting duct (1)
Which of the following OPPOSE the movement of fluid from the capillary to the glomerular capsule? 1. capillary hydrostatic pressure 2. capillary osmotic pressure 3. capsular hydrostatic pressure 4. capsular osmotic pressure Choose from the following: (A) 1 and 2 (B) 1 and 3 (C) 2 and 3 (D) 2 and 4 (E) 1 and 4
1. 3 of the following are true of the Renin Angiotensin Aldosterone System (RAAS) A. The JG cells are located at the distal collecting tubule B. The Juxtaglomerular cells (JG cells) are modified smooth muscles in the afferent arteriole C. The Macula densa detects osmolality of the filtrate D. The Macula densa is made up of tall columnar cells 2. 2 of the following are true of the RAAS responding to a decrease in Na in the filtrate A. Macula densa detects the decrease in osmolality B. JG cells are stimulated by Macula densa through tight junctions C. Aldosterone stimulates principal cells of collecting tubule to reabsorb water D. Aldosterone reabsorbs Na and by osmotic forces increase fluid in the extracellular compartment 3. 2 of the following are true of the loop of Henle A. Descending thick limb is also called the pars recta of the proximal tubule B. The function of the descending thick limb is similar to the distal convoluted tubule C. Cells of the descending thin limb are very…
A patient comes to your medical practice with complaints of low urine output (not peeing). You use inulin to calculate the glomerular filtration rate (GFR) using the following information: Plasma level (P – constant over 24 hours): 10 mg/mL inulin. Urine sample (U): 144 mg inulin/mL urine. Urine formation (V): 10 mL/min. Using the fromula GFR=V ✕ U/P, you calculate a GFR of ... A) 144mL/min.. B) 14400 mL/min. C) 144 min./mL. D) 144 g mannitol/min.
One model of the glomerular membrane is a microporous membrane in which right cylindrical pores penetrate all the way through the membrane. Assume that the pores have a length of 50 nm and a radius of 3.5 nm. The viscosity of plasma is 0.002 Pa s. The average hydrostatic pressure in the glomerulus is 60 mm Hg, hydrostatic pressure in Bowman's space is 20 mm Hg and the average oncotic pressure of glomerular capillary blood is 28 mm Hg. A. Calculate the flow through a single pore assuming laminar flow (use the Poiseuille flow equation) B. How many pores would there have to be to produce a normal GFR? C. If the total aggregate area of the kidneys for filtration is 1.5 m2, what is the density of the pores (number of pores per unit area)? D. What fraction of the area is present as pores?
3. The renal clearances and plasma protein binding of three drugs in a 70 kg adult are as follows: Renal Clearance (ml/min) % bound to plasma proteins Drug Theophylline Phenytoin 50 90 Cefonicid 98 10 0.15 20 If GFR is 120 ml/min and urine flow is 1.5 ml/min, what is the likely involvement of filtration, secretion and reabsorption in the renal excretion of each of these drugs? Answers: 1a. 0.114, c. 51.8 L/hr, d. 5.4 L/hr, e. 46.4 L/hr, f. 67.2 L/hr, g. 454 L/hr 2a. theophylline filtered and reabsorbed; phenytoin filtered and reabsorbed; cefonicid filtered and secreted
Indicate which of the following is (are) being described: question 1 has 2 answers and question 4 also has 2 answers please answer angiotensisn II, aldosterone and/or ADH 1.increases blood pressure by direct vasoconstriction (2 ANSWERS) 2.stimulates insertion of aquaporins into the collecting duct (1 ANSWER) 3.increases the secretion of the other two (1 ANSWER) 4.acts on the principal cells of the nephron (2 ANSWERS) 5.increases Na+ reabsorption by the kidney (1 ANSWER) 6.has its production directly blocked by ACE inhibitors (1 ANSWER) 7.increases water reabsorption by acting on kidney collecting duct (1 ANSWER)