Validate lab interpretations if possible

hi guys. i am working on a care plan, and i have some wonky lab values, and i'm not sure if i've gotten proper interpretations. a little background:

the client is a >70 male presenting with diverticulitis. he is now 8 days post-op for three attempted anastomoses (two were not airtight and the third was sucessful) and a temp ileostomy. full liquid diet. vs were normal, but he did have an elevated temp (ranged from 99.8 - 100.3). came in to the hospital with an elevated wbc (+/- 13k). on two antibiotics. also getting peri-cal @ 75 ml/hr.

here are the wonky labs: and the ones i am having issues with are the protein/albumin and bun. no s/sx of dehydration, medical hx does not show any renal impairment or chf, and i am stumped as to why the bun is elevated and the protein is decreased. i thought perhaps it was the iv tpn, but having looked at the nutrients included in the solution, it supposedly contains "enough" protein. not looking for a handout, but some guidance would be most appreciated. thanks so much for any help you may be able to provide.

rbc

wbc

hct

hgb

bun

total protein

albumin