Urinalysis & Body Fluids Exam 1 Review Test Banks With Solutions

Urinalysis & Body Fluids Exam 1 Review
Test Banks With Solutions

How does the countercurrent mechanism work? Reabsorbs water to the blood in the DLH

and reabsorbs Na+ into the medulla in the ALH




What is NOT actively reabsorbed in the tubules? Urea in the PCT & ALH




What is NOT passively reabsorbed in the tubules? Amino acids in the PCT




What is tubular secretion? The movement substances from the blood to the ultrafiltrate




What is tubular absorption? The movement of substances from the ultrafiltrate to the

blood




If the body is well hydrated, how does that affect ADH? Low ADH production, low tubule

permeability to water, large urine volume




If the body is dehydrated, how does that affect ADH? High ADH, high tubule

permeability to water, small urine volume

, Urinalysis & Body Fluids Exam 1 Review
Test Banks With Solutions

What is the purpose of the RAAS? Maintain glomerular pressure and reabsorb/secrete

Na+ & water




What monitors plasma Na+ content and blood pressure? Juxtaglomerular apparatus




What makes up the juxtaglomerular apparatus? Macula densa of the DCT and

juxtaglomerular cells of the afferent arteriole




Renin + Angiotensinogen = Angiotensin I




Angiotensin I + ACE = Angiotensin II




What does the production of Angiotensin II NOT lead to? Decrease in BP & Na+ retention




What is NOT a classification of a renal function test? They're all classifications of renal

function tests