Peritoneal Dialysis Flashcards
(88 cards)
critical barrer for transport
peritoneal capillary
Aquaporin in peritoneum =AQP1
pet
REGRA DO 2 = 2L DE INFUSAO,GLICOSE 2,5 %
DOSAR 2 SUBSTANCIAS = GLICOSE E CREAT
COLETAR O DIALISATO D0, D2 E D4
BAIXO TRANSPORTADOR =BOA UF
ALTO TRANSPORTADOR = BOM CLEARANCE
o ALTO transportador a glicose se dissipa mto rapido e ai perde a capacidade de puxar liquido ai precisa trocar varias vezes a solucao
o CAPD q faz 4 trocas por dia é bom pra quem é baixo transportador, DPA é bom pra alto
D/P CREATININA relacao dialisato /plasma
D/P of 0.82-1.03 high transporter
D/P of 0.65-0.81 high average transporter
D/P of 0.5-0.64 low average transporter
D/P of 0.34 to 0.49 low transporter
4-8 weeks after initiation; Clinically stable and at least 1 month after resolution of an episode of peritonitis
duration of draining
20-30 mins
fill duration 5-10 mins
3-7 cycles 1.5-2L dwell over 9h at night
CCPD
incomplete drain of a portion of infused fluid before filling
Tidal PD
Target Kt/V in PD
1.7
ADEMEX
dose of cefazolin
LD 500 mg/L MD 125 mg/L
dose of vancomycin
LD 30 mg/kg MD 1.5 mg/kg/bag
Intraperitoneal vancomycin may be administered as 15 – 30 mg/kg body weight IP every 5-7 days for Intermittent use (per exchange, once daily). For continuous use (all exchanges) the recommendation is a loading dose of 1000mg/L plus a maintenance dose of 25mg/L
Since vancomycin absorption in the presence of peritonitis is closer to 90% no incremental dose is needed for sepsis. Generally, a dosing interval of 4 – 5 days will keep serum trough levels above 15 ug/mL but, in view of possible variability, it is best to obtain serum levels.
Systemic vancomycin administration might also be an option (Perit Dial Int 2004 24: 433–439).
dose of amikacin
LD 25 mg/L MD 12 mg/L
when to return to PD after peritonitis
2 weeks of catheter removal
bowel obstruction, encapsulation due to fibrosis, bloody ascites
encapsulating pertineal sclerosis
more important surface area
parietal
blood flow of peritoneum
50-100
sodium sieving only occurs at
ultrapores
greatest hydrostatic pressure in
sitting position
visceral peritoneum
80%
effective peritoneal surface area = peritoneal vascularity
Distributed Model
direction of external catheter
lateral and inferior
exit site in females below umbilicus
exit site in males above umbilicus
break in period
2-4 weeks
leakage at the skin exit site
pericatheter leak
most common cause of outflow failure
kinks
heparin to be placed when with fibrin
250-500 u/L
buffer in low gdp
bicarbonate
Adequate solute clearance, poor UF - transporter/pd modality
High transporter, APD
