Interpretation Of Laboratory Tests Of Infectious Disease

Question 1

What is the common clinical presentation for mycoplasma, cytauxzoonosis, and babesia?

Answer 1

Anemia

Question 2

What is a common clinical presentation for RMSF, Ehrlichia canis, and Anaplasma platys?

Answer 2

Thrombocytopenia

Question 3

What is a common clinical presentation of Lyme, ehrlichia ewingii, anaplasma phagocytophilium, and bartonella?

Answer 3

Polyarthritis

Question 4

What is a common clinical presentation of bartonella, fungal, mycobacterium, and FIP?

Answer 4

Pyogranulamatous

Question 5

What is a common clinical presentation of RMSF, Ehrlichia canis, bartonella, leptospirosis, and FIP?

Answer 5

Vasculitis

Question 6

What is a common clinical presentation fungal and parasites?

Answer 6

Pulmonary lesions or cough

Question 7

What is a common clinical presentation of bartonella and chaga’s disease?

Answer 7

Endocarditis/myocarditis

Question 8

What is a common clinical presentation of Lyme, ehrlichia, heartworms, and RMSF?

Answer 8

Glomerular disease with PLN

Question 9

What is a common clinical presentation of leptospirosis, Lyme, ehrlichia, and RMSF?

Answer 9

AKI

Question 10

What are two types of infectious disease testing that you can perform?

Answer 10

Blood smears and In house SNAP 4Dx Plus

Question 11

(T/F) A positive SNAP test doesn’t mean current infection unless they are showing clinical signs because it could just be exposure

Answer 11

True

Question 12

What infectious agents cause morula in neutrophils on a blood smear?

Answer 12

Ehrlichia ewingii and Anaplasma phagocytophilum

Question 13

Why can a SNAP 4Dx Plus test be negative if a patient is infected?

Answer 13

• It is an acute infection
• There is not enough time for antibody production to occur

Question 14

How do you confirm that an infectious organism is present?

Answer 14

PCR

Question 15

(T/F) Quantitative C6 antibody - Lyme confirms infection

Answer 15

False, it only confirms exposure

Question 16

What type of testing can you do for bartonella?

Answer 16

Culture, PCR, and serology

Question 17

In RMSF, (IgG/IgM) increases within the first week of infection and (IgG/IgM) increases 2-3 weeks post infection

Answer 17

IgM; IgG

Question 18

What test confirms infection for RMSF?

Answer 18

PCR

Question 19

What diagnostics can you use to confirm E. Canis?

Answer 19

Serology or PCR

• IFA (7-28 days to be positive)

Question 20

What tests can confirm Leptospirosis?

Answer 20

• MAT (macroscopic agglutination test): acute and convalescent
• PCR (blood/urine)
• SNAP
• Witness IgM

Question 21

What are diagnostics for fungal diagnoses?

Answer 21

Cytology or histopathology, antigen assays (urine, serum)

Question 22

How do you test for blastomycosis?

Answer 22

Quantitative antigen test (MiraVista laboratory)

Question 23

The quantitative antigen test for blastomycosis cross reacts with what other organism?

Answer 23

Histoplasmosis

Question 24

What does a positive Blastomyces antigen test signify?

Answer 24

Presence of cell wall galactomannan detected

Question 25

Is a positive Blastomyces antigen test good enough as a definitive diagnosis?

Answer 25

No, because it cross reacts with out organisms

Question 26

How do you diagnose histoplasmosis?

Answer 26

FNA, urine antigen