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Functions of kidney
Acute renal failure pathology
Functions of kidney
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The renal system consist of two kidneys, ureters, bladder, and the urethra. the kidneys regulate circulating fluid in the body such as electrolytes, hormones, and also eliminates fluids(ATI. 628). Acute renal faliure is the leading cause of death among hospitalized patients and over half of them is due to a iatrogenic cause (ATI 629). Acute renal failure are categorized by prerenal, internal, and post acute renal failure. Prerenal is the most common resulting in hypo fusion and ischemia. common causes of ARF are hemorrhage, cardiac dysrhthmias, anaphylaxis, dehydration, and an embolism (Rosdal). Intra renal is when damage is done inside the kidney and is usually irreversible. glomerulonephritiis, nephrotic toxicity, and acute tubular nephrosis are some examples of intra renal risk factors. post renal is the obstruction of structures leaving the kidneys like renal calculi, urinary tract obstruction, and spinal cord disease. ARF is when the blood flow through the kidneys is significantly compromised and cannot filter the blood properly. there are four phases of acute renal failure the...
Chronic kidney disease also denoted as chronic renal failure is the gradual failure of the kidney to perform its function as required. The condition occurs gradually thus goes undetected until when it is too late. According to Buttaro et al (2013, p.723), there are certain risk factors that lead to the development of chronic kidney disease that individuals should be conversant with. Chronic kidney disease is hereditary meaning it can be passed from a parent to a child via genes. Age is another factor. This implies that people over 60 years are likely to get the disease thus should be cautious. Individuals having atherosclerosis, bladder obstruction, chronic glomerulonephritis or congenital kidney disease are also at the risk of getting the
1 in 3 Americans Adults are currently at risk for developing kidney disease. What is acute renal failure, when your kidneys functions all of a sudden stop working and your kidneys are the body’s filter which remove waste products and help balance water, salts and minerals especially electrolytes in your blood when your kidneys stop working you end up building all the products in your body that need to be filtered and eliminated. The pathophysiology of Acute Renal Failure are due to three main causes Pre-renal, Intra-renal, and Post renal. Pre-renal is a sudden drop in blood pressure or interruption of blood flow to the kidneys from illness or sever injury. Intra-renal is direct damage to the kidneys by inflammation of drugs, infection, toxins or reduced blood supply. Post-renal is a sudden obstruction of urine flow because of enlarged prostate bladder tumor, kidney stones, or injury.
Pathophysiology There are three different stages of acute renal failure; prerenal, intrarenal, and post renal. Prerenal failure is a result from an illness or injury that causes obstruction of blood flow to the kidneys, called hypoperfusion. Hypotension, hypervolemia and inadequate cardiac output are all examples that could cause prerenal failure. According to Lippincott Williams and Wilkins (2009), “prerenal azotemia, excess nitrogenous waste products in the blood, account for 40% to 80% of all cases of acute renal failure” (p. 307). Intrarenal is when there is direct damage to the kidney tissue by either inflammations, drugs, infections or a reduction in the blood supply to the kidney. Post renal is when there is an obstruction of the urine flow. Causes of obstruction could be enlarged prostate gland, kidney stones, bladder tumor or injury. There are four phases of acute renal failure; onset, oliguria, diuresis and recovery. The onset phase can last hours or up to days. The BUN and creatinine levels may start to increas...
The renal failure (kidney failure) is dangerous disorder which can affect the function of the kidneys. Stein (2002) defines the renal failure as a condition in which the kidneys are less able than normal to do their usual function. There are two classes of the kidney failure. The first one is acute renal failure which is abbreviated to (ARF) and the second one is chronic renal failure where can be shortened to (CRF). Gaw et al (2008) identified the differences between them as that the kidneys in acute kidney failure fail over a period of days or hours, while the chronic kidney failure develops over years or months. In addition, the acute renal failure may be reversed which means the normal kidney function could be regained, but the chronic renal failure is irreversible.
The renal disease are common nowadays .The acute renal failure is a medical term means that the kidneys stopped from working and not able to clear toxins from body ,not able to maintained a stable electrolyte balance inside the body and not able to secret the extra fluid as urine outside the body. The renal replacement therapy (RRT) or dialysis has been discovered on 1913 by Able, Rowntree and Turner in London, UK.
As a result of this there is insufficient blood flow to the kidneys. Secondly, Acute intrinsic kidney failure occurs when there is direct trauma to the kidneys. This usually occurs when taking a sever hit to the body near the kidneys. Other factors could be toxin overload and ischemia, lack of oxygen to the kidneys caused by renal blood vessel obstruction, shock, sever bleeding or inflammation. Chronic pre-renal kidney failure is a third type of kidney failure occurring when there is a long-term lack of blood flow to the kidneys. This type of kidney failure usually causes the kidneys to shrink and lose their function. Then, Chronic intrinsic kidney failure occurs by direct trauma to the kidneys due to severe bleeding or lack of oxygen. Lastly chronic post-renal kidney failure is a result of blockage of the urinary tract prevention urination and causing pressure eventually leading to kidney
The urinary system has many different organs in order for it to work as a whole. Each organ does different functions. The urinary system consists of the two kidneys, the two ureters, the bladder, the two sphincter muscles, the nerves in the bladder, and the urethra. After your body takes what it needs from the food you eat waste products are then left behind in the blood. The urinary system works with the lungs, skin, and intestines to keep the chemicals and water in your body balanced. The urinary system removes urea from your body. Urea is made when the foods you eat that are high in protein are broken down in the body. Urea is then carried into the bloodstream to the kidneys by the renal arteries.
In the human body, there are a number of systems that have their own importance and provide different functions to help keep us alive. One of these systems is the urinary system, also known as the renal system. As blood courses through the body, waste products are transferred into the bloodstream that needs to be extracted. The urinary system is designed to help the body remain free of excess water and waste that we no longer need. This particular system is made up of two kidneys, two ureters, a urinary bladder and a urethra that produces, stores, and then excretes urine out of the body. When it comes to the urinary system,
This article is for people whose kidneys fail to work. This condition is called end-stage renal disease (ESRD).
According to Stanfordchildrens.org (2014), the Urinary System, is a complex assembly of different organs that all together have the main function of excrete the waste from the bloodstream, regulate hormones that control other parts of the body and balance the water in the body. Urea is the name given to the waste obtained from the filtration of the blood. However, urine is the final product that is expelled from the body. The urinary system is the organism in charge to convert urea into urine. The urinary system is made of several parts that include two kidneys, two ureters, the bladder, the urethra and nephron. The malfunction of any part of the urinary system can lead with severe problems because of its importance in getting rid of the waste in our body.
The urinary system does more than you might think. The obvious functions of the urinary system are excretory and urine formation which transports storage urine and release, but it does quite a lot more. Since it is a regulator of how much water is in the blood it can impact blood pressure but it can also stimulate blood cell formation. Vitamin D is made from the interaction of sunlight and your skin but it is activated to perform its hormone function by the kidney cells. Your blood must stay within a very narrow range of pH for critical chemical reactions to occur, and to prevent damage to cells and tissues. The Urinary System is vital in keeping the pH in proper balance. Summarizing the previous we can conclude that the urinary system has 7 functions in total.
Some may think that they words acute kidney injury and chronic kidney disease mean the same thing, but that is incorrect. Kidney failure results from the kidneys not being able to eliminate metabolic waste products and water, which can also disturb all other organs of the body. Acute kidney injury (AKI) is a sudden and rapid loss of kidney function that usually occurs over hours to days due to acute tubular necrosis. Acute tubular necrosis is a process where ischemia affects parts of the kidneys and disrupts the basement membrane and the tubular epithelium. Chronic kidney disease (CKD) has a gradual onset and can take place over many years. CKD is seen in many diabetic patients due to diabetic neuropathy. AKI is a much more serious issue and should be taken very seriously.
Kidney damage can occur from hypertension which causes blood vessels in the kidneys to shrink and harden; infections travelling though the bloodstream; long-term and uncontrolled diabetes, and genetically inherited kidney problems. (Edith Cowan University, 2001-2004)
From the results of the numerous tests carried out according to the patient history of frothy urine with a significant oedema over a maximum period of 5 days, the patient was diagnosed with Nephrotic Syndrome. This is condition that occurs due to leakage in the kidney filtration part leading to a large amount of protein leaking from the blood into the urine. This is mainly due to fluid retention known as oedema which is as a result of low protein level in the blood. It occurs due to abnormal functioning or a part of the kidney is affected (glomeruli). This syndrome can be caused by numerous diseases coming together to cause or form one particular disease; these causes range from minimal change disease, membranous nephropathy, focal segmental glomerulosclerosis (FSGS) and other conditions, disorders of the glomeruli. The membranous nephropathy also known as the membranous nephritis or membranous glomerulonephritis, only causes diseases in adults and very uncommon in children. Leakage occurs from this due to the thickening of the membranous in the glomeruli which is the filter of the glomeruli. Focal segmental glomerulosclerosis is a causative due to the formation of small scars (sclerosis) on some of the kidney glomeruli. Another form of cause of nephrotic is minimal change which is due to lack of virtual change detected in the glomeruli when examined under the microscope. This causes the syndrome in 9 out of a total of 10 children under the age of 5 years.
Kidney Function Introduction and definition of terms: The kidneys are the main organs in the urinary system. They filter waste products out of blood from the renal artery. These are then excreted. Useful solutes are reabsorbed into the blood. They also have a major homeostatic role in the body, and help to control the water content (osmoregulation) and pH of the blood.