Often asked: Which Of The Following Best Describes Kidney Function In Older Adults (70 Years Or Older)?

Which of the following describes kidney function?

maintaining overall fluid balance. regulating and filtering minerals from blood. filtering waste materials from food, medications, and toxic substances. creating hormones that help produce red blood cells, promote bone health, and regulate blood pressure.

What would happen if the glomerular hydrostatic pressure were increased above normal?

What would happen if the capsular hydrostatic pressure were increased above normal? Net filtration would increase above normal. Net filtration would decrease.

Which cells of the kidney are Chemoreceptors?

24) The macula densa cells are chemoreceptors that respond to changes in the urea content of the filtrate.

What is the chief force pushing water and solutes out of the blood across the filtration membrane?

Glomerular hydrostatic pressure (HPg), which is essentially glomerular blood pressure, is the chief force pushing water and solutes out of the blood and across the filtration membrane.

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What is the test for kidney function?

Your kidney numbers include 2 tests: ACR (Albumin to Creatinine Ratio) and GFR (glomerular filtration rate). GFR is a measure of kidney function and is performed through a blood test. Your GFR will determine what stage of kidney disease you have – there are 5 stages.

What are the 7 functions of the kidneys?

The 7 functions of the kidneys

  • A – controlling ACID-base balance.
  • W – controlling WATER balance.
  • E – maintaining ELECTROLYTE balance.
  • T – removing TOXINS and waste products from the body.
  • B – controlling BLOOD PRESSURE.
  • E – producing the hormone ERYTHROPOIETIN.
  • D – activating vitamin D.

What three hormones factors do the kidneys secrete into the blood?

The kidney secretes (1) renin, a key enzyme of the renin-angiotensin system (RAS) that leads to the production of a potent pressor hormone angiotensin, and produces the following hormones and humoral factors: (2) kallikreins, a group of serine pro- teases that act on blood proteins to produce a vasorelaxing peptide

What happens when GFR decreases?

If GFR is too low, metabolic wastes will not get filtered from the blood into the renal tubules. If GFR is too high, the absorptive capacity of salt and water by the renal tubules becomes overwhelmed. Autoregulation manages these changes in GFR and RBF.

What three driving forces determine glomerular filtration rate?

glomerular filtration rate (GFR) – The total amount of plasma filtrate formed by all the nephrons of the kidneys per minute; it is determined physiologically by three factors: (1) the total surface area available for filtration, (2) the permeability of the filtration membrane, and (3) the net filtration pressure;

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Which structure is most important for urine concentration quizlet?

Which structure is most important for urine concentration? Capsular hydrostatic pressure is the chief force pushing water and solutes out of the blood and across the filtration membrane.

Which would not be normal constituent of urine?

Urea is a non-toxic molecule made of toxic ammonia and carbon dioxide. Any abnormal constituents found in urine are an indication of disease. The presence of red blood cells in urine is referred to as haematuria.

Are the structural and functional units of the kidneys?

5.1 Anatomy and Physiology. The nephron is the structural and functional unit of the kidney. It is composed of the glomerulus and the renal tubule (Fig. 7.14A).

Which of the following is the most likely to cause pyelonephritis?

The main cause of acute pyelonephritis is gram-negative bacteria, the most common being Escherichia coli. Other gram-negative bacteria which cause acute pyelonephritis include Proteus, Klebsiella, and Enterobacter.

How is Na+ reabsorbed?

Reabsorption of Na+ occurs in most parts of the renal tubule and collecting duct. Another 25% is reabsorbed in the thick ascending loop of Henle. Reabsorption of the remaining Na+ occurs in the principal cells of the distal convoluted tubule (DCT) and collecting duct (CD).

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