acute renal failure
Lasix is a brand name of frusemide. Frusemide is a diuretic - i.e. it causes the kidneys to produce more urine. If the fluid passed is not replaced by drinking then dehydration can occur. If there is dehydration then there will be a drop in blood pressure due to reduced intravascular volume.
Dehydration leads to a reduction in blood volume, which can subsequently decrease renal perfusion pressure. This drop in pressure can reduce the glomerular filtration rate (GFR), impairing the kidneys' ability to filter blood effectively. Consequently, prolonged dehydration can lead to kidney damage and decreased waste elimination. Maintaining hydration is essential for optimal kidney function and GFR.
During dehydration, the kidneys conserve water by concentrating urine and reducing its volume. They achieve this by reabsorbing more water back into the bloodstream, which is regulated by the hormone antidiuretic hormone (ADH). Additionally, the kidneys may also reduce sodium excretion to help retain more fluid in the body. This process helps maintain blood pressure and electrolyte balance during periods of low fluid intake.
Kidney stones.
yes, the blood is thicker than normal so your kidneys have to work harder to filter the waste.
When you are dehydrated, your kidneys do not stop working entirely, but their function is significantly affected. Dehydration leads to reduced blood flow to the kidneys, prompting them to conserve water by concentrating urine and reducing its volume. If dehydration is severe and prolonged, it can impair kidney function and potentially lead to acute kidney injury. Therefore, while the kidneys may still function under dehydration, their efficiency and effectiveness are compromised.
Prerenal oliguria is a condition characterized by a decreased urine output due to inadequate blood flow to the kidneys, often resulting from factors such as dehydration, heart failure, or systemic shock. It reflects a reversible form of acute kidney injury where the kidneys themselves are functioning normally but are not receiving sufficient blood supply to produce urine effectively. Prompt identification and treatment of the underlying cause can restore normal kidney function and urine output.
ADH
dehydration
The kidneys absorb more water when the hormone vasopressin signals the kidneys to reabsorb water back into the bloodstream. This occurs when the body needs to conserve water or is in a state of dehydration.
The kidneys regulate fluid in the body to maintain proper balance of electrolytes, fluid volume, and blood pressure. This helps in filtering waste products from the blood and maintaining overall body function. Failure to regulate fluid balance can lead to dehydration or fluid overload, causing health issues.
Dehydration leads to a decreased volume of water in the body, resulting in concentrated blood plasma and higher levels of solutes, including urea. The kidneys respond to dehydration by conserving water, which inadvertently elevates the concentration of urea in the blood as the kidneys reabsorb water while excreting waste. Consequently, this increased concentration of urea can be measured as elevated urea levels in the bloodstream, indicating potential kidney function issues or dehydration.