Microbiology
What is the purpose of a Blood culture?
Detect Bacteria/fungi in blood
Which additive works by inhibiting thrombin?
A- Heparin
B- EDTA
C-Sodium citrate
D- SPS
A- Heparin
Which test evaluates immature red blood cells?
A- Reticulocyte count
B- Hematocrit
C- ESR
D-Platelet count
A- Reticulocyte count
Which tube is preferred for STAT potassium test?
A- Red top
B- Lavender
C-Gold SST
D- Green heparin
D- Green heparin
Which antibody is produced first during an initial infection?
A- IgM
B-IgG
C- IgE
D- IgA
A- IgM- Immunoglobulin M is a class of antibodies that first response to initial exposure of a new antigen
Which sample must be placed on ice immediately?
A- TSH
B-ALT
C-Cholesterol
D- Lactic Acid
D- Lactic Acid
Which tube contains sodium citrate?
A- Green
B- Lavender
C- Yellow SPS
D- Light blue
D- Light blue
* Sodium citrate binds calcium to prevent clotting
ESR increases in which condition?
A- Hemolysis
B- Dehydration
C- Hyperthyroidism
D- Inflammation
D- Inflammation
Which test is used to assess liver injury?
a- LDL- Low-density lipoprotein often called (bad cholesterol)
b-TSH- Thyroid Stimulant Hormone
c-AST- Aspartate Aminotransferase
d-Glucose
c-AST- Aspartate Aminotransferase
Which immunoglobulin can cross the placenta to provide passive immunity to the fetus?
A- IgE
B- IgG
C- IgM
D- IgA
B- IgG
A Throat culture targets which area?
A- Oropharynx
C- Sinuses
D-Nasopharynx
A- Oropharynx
Which additive is found in the lavender top tube?
A- EDTA
B- Heparin
C- Sodium citrate
D- Sodium fluoride
A- EDTA
" DAILY DOUBLE"
Which test measures the percentage of red blood cells in whole blood?
A- RDW
B-MCV
C- Hemoglobin
D- Hematocrit
D- Hematocrit
* Measures the proportion of blood volume occupied by red blood cells (RBC)
Which tube is commonly used for electrolyte testing?
A- Green heparin
B- Light Blue
C- Yellow SPS
D- Lavender EDTA
A- Green heparin
Which test is commonly used to screen for syphilis?
A- CMP
B-RPR
C-ESR
D- TSH
B-RPR Rapid Plasma Reagin (looks for bacteria that causes Syphilis
Which condition requires collecting a lactic Acid sample on ice?
Liver dysfunction
Which additive prevents glycolysis in blood samples?
A- Sodium Fluoride
B- Lithium Heparin
C- SPS
D- EDTA
A- Sodium Fluoride
* Sodium Fluoride inhibits glycolysis, preserving glucose levels
Which cells are responsible for carrying oxygen?
A- Neutrophils
B- Lymphocytes
C-RBCs
D- Platelets
C-RBCs Red blood cells transport oxygen throughout the whole body
Which test is the gold standard for detecting cardiac injury?
A- BUN
B- TSH
C-CRP
D- Troponin
D- Troponin
marker for myocardial injury
Which test is used to detect HIV antibodies?
A- Elisa
b- CBC
c- PT/INR
d- CRP
A- Elisa
Which type of tube is typically used for collecting blood cultures?
Yellow with SPS Sodium Polyanethol sulfonate
Which tube must be completely filled for accurate testing?
A- Gold
B- Red top
C- Green heparin
D- Light Blue
D- Light Blue
Which test measures the average size of red blood cells?
A- RDW-Red Cell Distribution Width
B- HGB- Hemoglobin
C- MCV- Mean Corpuscular volume
D- MCHC- Mean Corpuscular Hemoglobin concentration
C- MCV
Which test is used to evaluate Kidney Function? (LFT's)
A- CRP- C- reaction Protein
B-Troponin
C- ALT- Alanine aminotransferase
D- BUN- Blood Urea Nitrogen
D- BUN- Blood Urea Nitrogen
Which immunoglobulin is associated with allergic reactions?
A- IgM
B- IgG
C- IgA
D- IgE
D- IgE looks for hypersensitivity reactions