Renal function
Renal function, in nephrology, is an indication of the state of the kidney and its role in renal physiology. Glomerular filtration rate (GFR) describes the flow rate of filtered fluid through the kidney. Creatinine clearance rate (CCr or CrCl) is the volume of blood plasma that is cleared of cre…
What is the effect of reducing efferent arteriole radius?
Your answer: Decreasing efferent radius increased both pressure and rate. 7. Describe the effect of increasing the efferent radius on glomerular capillary pressure and filtration rate.
What would happen if the diameter of the efferent arterioles in the glomerulus decreased?
If the diameter of the efferent arterioles leading away from the glomerulus decreases (vasoconstriction), which of the following is NOT likely to occur? Systemic blood pressure will go up.
What will happen to the glomerular filtration rate of efferent arterioles constrict?
During efferent arteriole constriction, GFR is increased, but RPF is decreased, resulting in increased filtration fraction. During a state of increased plasma protein concentration such as during multiple myeloma, GFR is decreased with no change in RPF, resulting in decreased FF.
How can the afferent and efferent arterioles affect glomerular filtration rate?
A decrease in the diameter of the afferent arteriole has the opposite effect. An increase in the efferent arteriolar diameter (decrease in resistance) causes a decrease in the glomerular capillary hydrostatic pressure and a decrease in GFR. A decrease in the diameter of the efferent arteriole has the opposite effect.
Why does dilation of efferent arteriole decrease GFR?
The net result of efferent arteriolar constriction is an increased filtration fraction. The GFR most likely decreases because the RBF decreases, but the decrease in the GFR will not be proportionate because of the increase in glomerular capillary pressure.
What causes decreased glomerular filtration rate?
A decrease or decline in the GFR implies progression of underlying kidney disease or the occurrence of a superimposed insult to the kidneys. This is most commonly due to problems such as dehydration and volume loss. An improvement in the GFR may indicate that the kidneys are recovering some of their function.
What happens if glomerular filtration rate decreases?
Abstract. Background and Purpose— Persons with early stages of chronic kidney disease, defined by a decreased glomerular filtration rate (GFR), have an increased risk of cardiovascular disease.
What effect does constricting the efferent arteriole have on the filtration process quizlet?
Constriction of the afferent arteriole increases the GFR. What is the name for the regulation of the glomerular filtration rate, where the afferent arterioles adjust their diameter in response to blood pressure changes?
What happens when arterioles constrict?
The constriction of arterioles increases resistance, which causes a decrease in blood flow to downstream capillaries and a larger decrease in blood pressure. Dilation of arterioles causes a decrease in resistance, increasing blood flow to downstream capillaries, and a smaller decrease in blood pressure.
What happens to glomerular filtration rate GFR when the efferent arteriole constricts quizlet?
Glomerular filtration rate decreases.
What happened to the GFR as the afferent radius was increased Why?
What happens to the glomerular filtration rate as the afferent radius is increased? The glomerular filtration rate decreases, due to the decreased blood flow into the glomerulus. The glomerular filtration rate increases, due to the increased blood flow into the glomerulus.
What does the efferent arteriole do?
Efferent arteriole is a branch of the renal artery that drains blood away from the glomerulus. Afferent arteriole carries blood to the glomerulus. Efferent arteriole takes blood away from the glomerulus.