Abdominal and Thoracic Fluid Effusions Flashcards
The escape of fluid into a body part that is not a dz, but rather an indication of a pathologic process in fluid production or removal
Effusion
Fluid accumulation in the chest cavity
Pleural effusion
Fluid accumulation in the abdominal cavity
Abdominal effusion
Which effusion is most common in cats?
Pleural effusion
Which effusion is more common in dogs?
Abdominal effusion
A thoracocentesis is performed when an animal has a _______ effusion
pleural
3 items needed to do a thoracocentesis
- 18-20 OTN catheter
- 3 way stopcock
- tubing
To perform a TNCC, TP, and cytological evaluation, samples should be put in these tubes
Purple top tube
To perform biochemical analysis of chlesterol or triglycerides, samples should be put in these tubes
Red top tube
To perform a microbiological cultures, samples should be put in
culture tubes
Performed for abdominal effusions
Abdominocentesis
To perform an abdominocentesis, the puncture should be done
1-2 cm caudal to the umbillicus
To prepare a slide for a non-turbid fluid specimen, it should be centrifuged for _ minutes
5 minutes
A low cellular fluid can be on a slide prepared as a
linear smear
Opaque fluids can be on a slide prepared as a
direct smear
When sending slides to a lab you should send 2 slides:
Stained and unstained
Transperancy of Normal Fluid
Clear to slightly turbid
Color of Normal Fluid
Colorless/straw yellow
TP of Normal Fluid
<2.5 g/dl
SG of Normal Fluid
<1.015
TNCC of Normal Fluid
2000-6000/uL
Predominate WBC seen in effusions
Neutrophils
These cells are seen in effusions and are large cells, found in clusters
Mesothelial cells
These cells seen in effusions have an oval to bean shaped nucleus, with lacy chromatin, vacuoles in cytoplasm, may be confused with Mesothelial cells
Macrophages
These cells are seen in chylous effusions and lymphosarcoma effusions
Lymphocytes
Bigger than normal lymphocytes and are seem with inflammation
Reactive lymphocytes
These cells are found secondary to mast cell tumors, heartworms, and allergic reactions
Rod like granules
Eosionphils
These cells are seen with mast cell tumors and various inflammatory disorders with red/purple granules
Mast cells
These cells are seen secondary to hemorrhage or contamination
Erythrocytes
These cells are seen with Epithelial cells, discrete round cells, and spindle cell tumors
Neoplastic cells
This stains clear and look like a Y shape in the center
Glove powder
Baby heartworm
microfilaria
These are smudge cells AKA ruptured nucleated cells
Basket cells
These type of fluids are of non-inflammatory origin
Referred to ascites
Transudates
Transudates can be due to 4 things
hypoalbuminemia, uroperitoneum, CHF, and neoplasia
Will transudates clot?
No
The predominate cells in transudates
mesothelial
These type of fluids occur as a result of fluid leaking from the lymphatic system, ^ in hydrostatic pressure or permeability
Modified Transudates
What are 2 main causes of modified transudates?
FIP and chylous effusions
Is coagulation possible with Modified Transudates?
It’s possible
The predominate cells in Modified Trasnudates
Lymphocytes
Occur due to inflammation
Exudates
The predominate cells found in exudates
Degenerative neutrophils
3 reasons for exudates
- inflammation
- infection
- necrosis
When placed in a red top tube, exudates will
clot
Inflammation of the peritoneal cavity
Peritonitis
Inflammation of the pleural cavity
pleuritis
Main cause of pleuritis/peritonitis
Bacterial infections
A gram + bacteria that causes pleuritis, systemic infections, and abscesses
Actinomyces spp.
Gram + soil saprophyte that causes pyogranulomatous pleurisy and pneumonia leading to effusion
Nozardia spp.
Anaerobic gram - bacteria that is normal flora in the mouth and is a causative agent for infected dog or cat bite wounds
Fusobacterium spp.
Occurs in cats of all ages and types, even large cat species
Fluid accumulates in the thorax and abdomen
FIP
The causative agent for FIP
Coronavirus
Mortality rate for FIP
100%
2 forms of FIP
Wet and Dry
This form of FIP you will see peritoneal or pleural effusions
Wet
This form of FIP will have pyogranulomatous inflammation with neutrophils and large numbers of macrophages
C/S develop more slowly
Dry
This can cause transudate, modified transudate, or exudate
Urine in the abdomen
Uroperitoneum
Uroperitoneum is caused by
ruptured bladder, urethra, and ureters
Two tests used to measure levels of fluid with a uroperitoneum
BUN and CREA
Sometimes present with uroperitoneum
crystals
Can cause transudate, mod. transudate, or exudate
The fluid can be yellow to milky white
Cardiovascular Dz
2 things to perform to diagnose with Cardiovascular Dz
Radiograph or EKG
Common secondary to right sided heart failure
Ascites
Contain chyle from the intestines after ingestion of food containing lipids
Modified transudate
Chylous effusion
Predominant cells with chylous effusion
neutrophils and macrophages
Chylous effusions will have ____ fat and ____ triglyceride content, which accounts for the milky white color
high, high
Chylous effusions usually occur due to
<3 dz or lymphoma
Rare cause of a chylous effusion
Ruptured thoracic duct
Modified transudate that does NOT contain chyle
Pseudochylous effusion
With a pseudochylous effusion, the white color is caused by
cellular debris
Not common in veterinary medicine
Pseudochylous effusion
Pseudochylous effusion is usually secondary to
<3 dz