Kidney? Flashcards
1
Q
Low flow to the kidney - what does it do?
A
- The macula densa senses low flow, and signals the JG apparatus this will lead to release of NO to the AFFerent arteriole to dilate it (increase flow in)
- The JG apparatus will also stop inhibition of renin, increasing renin, and trigging RAAS
- Ang2 from the RAAS will act on the EFFerent arterioles and trigger constriction (less flow out - more forced through the glomerulus)
- Ang2 will also constrict vessels throughout the body, leading to HTN to increase overall perfusion of the kidney.
In other words, increase availability, improve flow, and reduce waste
2
Q
Tx for dialysis disequilibrium syndrome
A
Call nephro. Presents with neuro sx, likely secondary to cranial edema, and can give IV Mannitol
3
Q
Fever, low specific gravity of urine and low molecular weight proteinuria (not albumin) is suggestive of
A
ATN - can be caused by overuse of NSAIDs, is usually drug induced. Tubular cause is suggested by the non-albumin proteinuria
4
Q
ECG for HyperK+
A
Peaked T waves
5
Q
ECG for Hypo K+
A
U waves