vents & transplant Flashcards
initial vent settings
AC or SIMV
RR 12-16
TV 6-8ml/kg IBW
PEEP 5
FiO2 100%
RSBI
rapid shallow breathing index
respiratory rate/TV
=breaths/min/L
<105 is positive = extubation
> 105 likely to fail extubation
warm vs cold ischemic time
warm - amount of time the organ remains at body temp after blood supply has been stopped or reduced
cold - amount of time organ is preserved in hypothermic state prior to transplantation (4-6h for heart, <12 for liver/pancreas, <24 for kidney)
initial blood testing prior to transplant
blood type testing, HLA, crossmatch
major AE of calcineurin inhibitors (cyclosporine, tacrolimus)
renal insufficiency
immunosuppression options
glucocorticoids
calcineurin inhibtitors
antimetabolites
proliferation signal inhibitors
primary indication for cardiac transplant
stage IV heart failure-refractory to maximum medical therapy
NYHA heart functional classification HF
stage I - no physical activity limitations
stage II - slight limitation of physical activity resulting in fatigue, palpitation, dyspnea, or angina
stage III - marked limitation of physical activity, less than ordinary physical activity results in symptoms
stage IV - inability to carry out any physical activity without discomfort, may have angina at rest
what is denervation?
after heart transplant, the heart is denervated and has altered response to cardiac meds (digoxin, atropine)
common findings after heart transplant
HTN, HLD, DM, renal dysfunction
diagnostic for transplant rejection
biopsy!!!
heart - end-myocardial biopsy
lungs - transbronchial biopsy
kidney - renal biopsy
pancreas - ultrasound guided pancreatic biopsy
liver - liver biopsy
intestine - endoscopic biopsy
heart transplant follow up
immunosuppression
heart Cath yearly
biopsy/ECHO periodically in first year
stresst test at 6-8 weeks
LHC at one year
CT C/A/P every 3 years
s/s of heart transplant rejection
arrhythmias and HF symptoms (edema, SOB)
main indications for lung transplant
advanced COPD
idiopathic pulmonary fibrosis
cystic fibrosis
lung transplant follow up
CXR weekly x6 weeks, then PRN
PFTs annually
chest CT at 6 mo, annually
bronch bimonthly then PRN