Cytology of<unk> -induced fluid showing neutrophils, macrophages and lymphocytes Diagnosing effusive<unk>  Diagnosis of the effusive form of the disease has become more straightforward in recent years. Detection of viral RNA in a sample of the effusion (liquid drained from body), such as by reverse transcription polymerase chain reaction (RT-PCR) is diagnostic of effusive<unk> . However, that does require that a sample be sent to an external veterinary laboratory. Within the veterinary hospital there are a number of tests which can rule out a diagnosis of effusive<unk>  within minutes: #Measure the total protein in the effusion: if it is less than 35g/L,<unk>  is extremely unlikely. #Measure the albumin to globulin ratio in the effusion: if it is over 0.8,<unk>  is ruled out; if it is less than 0.4,<unk>  is a possible—but not certain—diagnosis. #Examine the cells in the effusion: if they are predominantly lymphocytes (a type of white blood cell), then<unk>  is excluded as a diagnosis. Diagnosing non-effusive<unk>  Non-effusive<unk>  is more difficult to diagnose than effusive<unk>  because the clinical signs tend to be more vague and varied: the list of differential diagnoses is therefore much longer. Non-effusive<unk>  diagnosis should be considered when the following criteria are met: #History: the cat is young (under 2 years old) and purebred: over 70% of cases of<unk>  are in pedigree kittens. #History: the cat experienced stress such as recent neutering or vaccination #History: the cat had an opportunity to become infected with FCoV, such as originating in a breeding or rescue cattery, or the recent introduction of a purebred kitten or cat into the household. #Clinical signs: the cat has become anorexic or is eating less than usual; has lost weight or failed to gain weight; has a fever of unknown origin; intra-ocular signs; jaundice. #Biochemistry: hypergammaglobulinaemia; raised bilirubin without liver enzymes being raised. #Hematology: lymphopenia; non-regenerative—usually mild—anaemia. #Serology: the cat has a high antibody titre to FCoV: this parameter should be used with caution, because of the high prevalence of FCoV in breeding and rescue catteries. Non-effusive<unk>  can be ruled out as a diagnosis if the cat is seronegative, provided the antibody test has excellent sensitivity. In a study which compared various commercially available in-house FCoV antibody tests, the FCoV Immunocomb (Biogal) was 100% sensitive; the Speed F-Corona rapid immunochromatographic (RIM) test (Virbac) was 92.4% sensitive and the FASTest<unk>  (MegaCor Diagnostik) RIM test was 84.6% sensitive.
Feline infectious peritonitis
Travelers' diarrhea
Miliary fever
DAVID syndrome
Hantavirus hemorrhagic fever with renal syndrome
Hemolytic–uremic syndrome
Spontaneous bacterial peritonitis
Salmonellosis