Ischemic ATN occurs when the tubular cells do not get enough oxygen, a condition that they are highly sensitive and susceptible to, due to their very high metabolism. Diagnosis. Acute tubular necrosis is classified as a renal (i.e. not pre-renal or post-renal) cause of acute kidney injury. Diagnosis is made by a FENa (fractional excretion of sodium) > 3% and presence of muddy casts (a type of granular cast) in urinalysis.
A Rhyming Couplet is two line of the same length that rhyme and complete one thought. There is no limit to the length of the lines. Rhyming words are words that sound the same when spoken, they don't necessarily have to be spelt the same.
Defining Rhyming Couplets. You may have encountered Shakespeare's Weird Sisters and these lines from the play Macbeth : 'Double, double, toil and trouble; Fire burn and cauldron bubble.'. These famous lines are an epic example of a rhyming couplet. As you may have surmised from the name, rhyming couplets are two lines that rhyme, but they also often have the same meter, or rhythmic structure in a verse or line.