Microbiology
When culturing for the presence of Legionella pneumophila, this is the best choice of media.
What is Buffered Charcoal Yeast Extract Agar (BCYE)?
This abnormal hemoglobin is seen in patients with alpha thalassemia and is composed of four beta globin chains.
What is Hgb H?
This cell of the innate immune system has granules that contain bactericidal enzymes.
What are neutrophils?
A protein electrophoresis with a sharp spike in the gamma region is most indicative of this condition.
What is monoclonal gammopathy or multiple myeloma?
The following laboratory results were obtained: Gram positive coccus, optochin resistant, bacitracin sensitive, Hippurate hydrolysis negative, PYR positive, and catalase negative. This is the most likely identification of the organism.
What is Streptococcus pyogenes or Group A strep?
This nucleic acid formation is impaired if a person is deficient in vitamin B12 or folic acid.
What is thymidine?
Lysis of foreign cells, increase in vascular permeability, and migration of neutrophils to the tissues.
What are the functions of the complement system?
Glomerular filtration rate can best be determined by the clearance of this waste product.
What is creatinine?
This organism can grow in the bowel and cause diarrhea in children, traveler's diarrhea, or a severe cholera-like illness with the production of enterotoxins.
What is E. coli?
This group of anemias shares the peripheral blood smear features of thrombocytopenia, schistocytes, and reticulocytosis.
What is microangiopathic hemolytic anemias (MAHA)?
Recognized by PRRs, these are found only in microorganisms. They help distinguish self from non-self.
What are pathogen-associated molecular patterns (PAMPs)?
The complement system migrates in this section of the protein electrophoresis pattern.
What is the beta region?
These are three genera of bacteria that produce a positive when testing for phenylalanine.
What are Proteus, Providencia, and Morganella?
This abnormal RBC morphology should be expected on the peripheral blood smear in the following situation: An EDTA tube was underfilled.
What is an echinocyte/burr cell?
The main function is to establish a concentration gradient to guide cell movement.
What are chemokines?
Patients who have been diagnosed with a malignancy can sometimes demonstrate an increased concentration of this electrolyte.
What is calcium?
A beta hemolytic Gram positive coccus was isolated from the CSF of a 2-day-old infant with signs of meningitis. The isolate grew on sheep blood agar under aerobic conditions and was resistant to bacitracin. This is the laboratory test that should be performed next.
What is Hippurate hydrolysis or the CAMP test?
Both sides of a hemocytometer were counted, and a total of 308 WBCs were seen. A 1:20 dilution was performed. This would be the total WBC count.
What is 7,700 WBCs/uL or mm3?
Required during the production of class II MHC molecules to prevent endogenous peptides within the endoplasmic reticulum from binding to the class II peptide-binding grove.
What is an invariant chain?
Pilocarpine is used for the determination of this clinical condition.
What is a sweat chloride test for cystic fibrosis?