Pathophysiology for Coders Flashcards
6 cards from real CRC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Pathophysiology for Coders flashcards as text
A patient with CKD stage 4 develops secondary hyperparathyroidism. What pathophysiological mechanism connects these conditions?
Answer: Impaired kidneys reduce vitamin D activation, lowering calcium and triggering PTH overproduction
Failing kidneys cannot convert vitamin D to its active form, leading to hypocalcemia and compensatory PTH overproduction.
A provider documents 'hepatic encephalopathy secondary to cirrhosis.' What causes the neurological symptoms?
Answer: The cirrhotic liver cannot metabolize ammonia, allowing toxic levels to reach the brain
Elevated blood ammonia from impaired hepatic metabolism crosses the blood-brain barrier, causing astrocyte swelling and neurotransmitter dysfunction.
Why do patients with advanced heart failure develop hepatic congestion?
Answer: Right-sided heart failure increases central venous pressure, causing blood to back up into the liver
Right-sided heart failure increases CVP, transmitting backward through IVC and hepatic veins into liver sinusoids.
What is the primary mechanism of diabetic peripheral neuropathy?
Answer: Chronic hyperglycemia causes polyol pathway activation, AGE formation, and microvascular damage
Multiple interconnected pathways converge: polyol pathway (osmotic damage), AGEs (structural damage), and microvascular disease of the vasa nervorum.
What pathophysiological difference between Type 1 and Type 2 diabetes is most relevant for HCC classification?
Answer: Type 1 requires insulin by definition with higher DKA risk; Type 2 has variable severity
Absolute insulin dependence and DKA risk in Type 1 represents inherently different management needs.
A patient with chronic atrial fibrillation develops a stroke. What mechanism links these conditions?
Answer: Irregular rhythm causes blood stasis in the left atrial appendage, promoting thrombus formation that can embolize to the brain
In AF, ineffective atrial contraction causes blood stasis, promoting clot formation that can travel to cerebral arteries.