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Questions and Answers
Which of the following is NOT typically associated with thrombocytosis?
Which of the following is NOT typically associated with thrombocytosis?
Which stain is incorrectly matched with its use in malaria diagnosis?
Which stain is incorrectly matched with its use in malaria diagnosis?
Which enzyme is commonly elevated in a patient experiencing a heart attack?
Which enzyme is commonly elevated in a patient experiencing a heart attack?
What clinical finding is suggestive of fungal meningitis?
What clinical finding is suggestive of fungal meningitis?
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What is the implication of a false negative DAT in Frazer's case?
What is the implication of a false negative DAT in Frazer's case?
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How does Pappenheimer differ from Howell Jolly bodies during staining?
How does Pappenheimer differ from Howell Jolly bodies during staining?
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Which of the following bacteria is commonly associated with septicemia?
Which of the following bacteria is commonly associated with septicemia?
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Which patient characteristic indicates that neonates do not usually check for HIV antibodies?
Which patient characteristic indicates that neonates do not usually check for HIV antibodies?
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What is the term for the immunity that develops after exposure to a pathogen?
What is the term for the immunity that develops after exposure to a pathogen?
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Which bacteria is most commonly associated with producing abscesses and boils?
Which bacteria is most commonly associated with producing abscesses and boils?
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In which of the following scenarios might potassium levels appear falsely elevated?
In which of the following scenarios might potassium levels appear falsely elevated?
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What is the primary medium used for cultivating Mycobacterium tuberculosis?
What is the primary medium used for cultivating Mycobacterium tuberculosis?
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What is a common Gram-negative, motile rod in clinical microbiology?
What is a common Gram-negative, motile rod in clinical microbiology?
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What is indicated by the presence of anti-HBc in a hepatitis screening?
What is indicated by the presence of anti-HBc in a hepatitis screening?
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In which condition would you find decreased factor VIII levels?
In which condition would you find decreased factor VIII levels?
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What is the mechanism of action for β-lactam antibiotics regarding bacterial resistance?
What is the mechanism of action for β-lactam antibiotics regarding bacterial resistance?
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Which of the following is NOT classified as a eukaryotic microorganism?
Which of the following is NOT classified as a eukaryotic microorganism?
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What is the primary hormone secreted by the parathyroid gland?
What is the primary hormone secreted by the parathyroid gland?
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Which of the following methods is commonly used for analyzing electrolytes quantitatively?
Which of the following methods is commonly used for analyzing electrolytes quantitatively?
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In blood type cross-matching, what is the purpose of the indirect Coombs test?
In blood type cross-matching, what is the purpose of the indirect Coombs test?
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Which organism is commonly associated with urinary tract infections and can be acquired from normal bowel flora?
Which organism is commonly associated with urinary tract infections and can be acquired from normal bowel flora?
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What is the main characteristic finding in the diagnosis of Schistosoma haematobium infestation?
What is the main characteristic finding in the diagnosis of Schistosoma haematobium infestation?
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Which immune response is characterized by the presence of serum antibodies Anti-A & B?
Which immune response is characterized by the presence of serum antibodies Anti-A & B?
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Which condition can lead to a total leukocytic count of less than 4,000/cu.mm?
Which condition can lead to a total leukocytic count of less than 4,000/cu.mm?
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Study Notes
Immunology and Pathology
- Type IV Hypersensitivity is characterized by delayed immune response.
- Thrombocytosis often occurs in conditions like sickle cell anemia.
- Polymyositis is indicated by proximal muscle inflammation in a patient.
- Howell Jolly bodies do not stain blue; Pappenheimer bodies do.
- Antibodies are not checked for HIV in neonates due to low detectability.
- Creatinine kinase (CK) and lactate dehydrogenase (LDH) are common markers for heart attack.
- Beta thalassemia major shows no A hemoglobin, with high levels of Hb F.
Laboratory Techniques and Results
- Bacterial septicemia is caused by Staphylococcus aureus, E. coli, and Streptococcus pneumoniae.
- In fungal meningitis, pleocytosis with high lymphocytes and low glucose in CSF indicates an infection.
- ZN stain for detecting mycobacteria requires decolorization with acid alcohol.
- Giemsa stain is used for thick smears in malaria diagnosis, contrary to Sudan black.
- Forward grouping tests unknown red cells against known antisera.
- The indirect Coombs test identifies coating on cells during cross-matching.
Microbiology
- Gram-negative diplococci associated with pulmonary infections include Neisseria meningitidis.
- Bacillus anthracis is a Gram-positive, spore-forming bacterium that can cause diarrhea.
- Pseudomonas aeruginosa is a motile Gram-negative rod bacterium.
- Mycobacterium tuberculosis is best cultured on Lowenstein Jensen medium.
Blood and Coagulation
- Factor VIII is decreased in Hemophilia A.
- Thrombocytopenia is indicated by a leukocyte count below 4,000/cu.mm in malignancies.
- Schistosoma haematobium infestation is diagnosed through characteristic eggs in urine.
- The parathyroid gland secretes parathyroid hormone, crucial in calcium balance.
Miscellaneous
- The principle of spectrophotometry is based on the proportionality of light absorption to the substance's concentration.
- Anisocytosis refers to variations in cell size observed in blood smears.
- Anti-A and B antibodies are typically found in individuals with blood type O.
- Artificial barriers in agglutination reactions can include latex particles and erythrocytes coated with antigens.
- The most common methods for quantitative electrolyte analysis involve flame emission photometry and ion-selective electrode techniques.
Additional Concepts
- Resistance to β-lactam antibiotics often arises from decreased penicillin-binding protein.
- The terms "adaptive immunity" and "acquired immunity" are interchangeable.
- In Glanzmann's thrombasthenia, the defect lies in platelet aggregation.
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Description
Test your knowledge on various topics in medical biochemistry and pathology. This quiz covers key concepts such as delayed-type hypersensitivity and specific disease conditions like thrombocytosis. Assess your understanding of laboratory practices and color coding in hazard symbols.
