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.
A heroic couplet is a rhyming couplet that uses a meter called iambic pentameter. In order to clarify what the term ' iambic pentameter ' means, let's discuss what each word of term refers to.hat's more, these two lines form a rhyming couplet, which means the end rhymes are located as close to each other as possible. So, now that we're on the subject of couplets, you might be wondering what makes a couplet 'heroic.' Judging by the name, you might guess that it's a couplet about a hero.