[May 04, 2026] Updates Up to 365 days On Valid ABMM Braindumps [Q27-Q45]

NEW QUESTION 27
A patient returning from a mission trip to Africa presents with fever, headache, and a characteristic relapsing pattern of symptoms. Peripheral blood smear reveals the presence of extracellular flagellated protozoa. The MOST likely diagnosis is African trypanosomiasis caused by:

NEW QUESTION 28
For epidemiological tracking and outbreak investigations of Clostridioides difficile infection (CDI), which molecular typing method based on PCR amplification targeting repetitive elements within the pathogenicity locus (PaLoc) has historically been widely used and designated by specific nomenclature (e.g., NAP1/BI
/027)?

NEW QUESTION 29
A key virulence factor of Neisseria meningitidis that plays a major role in immune evasion and is the target for serogrouping is the:

NEW QUESTION 30
A patient develops a severe skin and soft tissue infection following a boating accident in the Gulf Coast.
Wound cultures grow a Gram-negative, halophilic bacterium that is oxidase-positive. The MOST likely organism is:

NEW QUESTION 31
A patient with a history of recurrent sinopulmonary infections and bronchiectasis is diagnosed with primary ciliary dyskinesia. Sputum cultures are most likely to persistently grow which of the following organisms?

NEW QUESTION 32
A microbiology laboratory is performing antimicrobial susceptibility testing using the Kirby-Bauer disk diffusion method. A bacterial isolate shows no zone of inhibition around a specific antibiotic disk. This result could be due to:

NEW QUESTION 33
A clinical microbiology laboratory is using flow cytometry to analyze lymphocyte subsets in a patient with suspected immunodeficiency. Which of the following cell surface markers is typically used to identify helper T cells?

NEW QUESTION 34
A microbiology laboratory receives a wound swab from a patient with a chronic, non-healing ulcer. Culture yields a Gram-positive, branching filamentous bacterium that is partially acid-fast. The MOST likely genus is:

NEW QUESTION 35
An immunocompromised patient develops a disseminated fungal infection. Tissue biopsy reveals small (2-4
µm) yeast cells within macrophages. The patient has a history of living in the Ohio and Mississippi River valleys. The MOST likely causative agent is:

NEW QUESTION 36
A patient with severe combined immunodeficiency (SCID) develops a progressive respiratory illness.
Bronchoalveolar lavage fluid is examined using direct fluorescent antibody (DFA) staining, which reveals numerous cysts of Pneumocystis jirovecii. The cysts appear:

NEW QUESTION 37
A patient who received a solid organ transplant develops a pneumonia. Bronchoalveolar lavage fluid is positive for a single-stranded RNA virus that can cause giant cell formation with intranuclear and intracytoplasmic inclusions. The MOST likely causative agent is:

NEW QUESTION 38
A serum sample from an asymptomatic patient screened for syphilis yields a reactive Rapid Plasma Reagin (RPR) test result with a titer of 1:16, but a non-reactive Treponema pallidum particle agglutination (TP-PA) test. What is the most likely interpretation of these findings?

NEW QUESTION 39
A patient with HIV infection and a very low CD4+ T-cell count develops a disseminated infection with a fungus that is commonly found in pigeon droppings. The MOST likely causative agent is:

NEW QUESTION 40
Besides traditional Giemsa-stained thick and thin blood smears, which diagnostic approach is commonly employed as a rapid diagnostic test (RDT) for malaria detection, particularly in resource-limited settings?

NEW QUESTION 41
A research team is investigating the host immune response to Mycobacterium tuberculosis. They discover that a specific mycobacterial glycolipid inhibits the maturation of phagosomes containing the bacteria, preventing their fusion with lysosomes. This mechanism allows M. tuberculosis to:

NEW QUESTION 42
A clinical microbiology laboratory is implementing a new MALDI-TOF mass spectrometry system for bacterial identification. For accurate identification, the system relies on comparing the protein profile of an unknown isolate to:

NEW QUESTION 43
A neonate develops a vesicular rash, fever, and seizures within the first week of life. CSF analysis reveals lymphocytic pleocytosis and elevated protein. PCR of the CSF is positive for a double-stranded DNA virus.
The MOST likely causative agent is:

NEW QUESTION 44
A traveler returning from a tropical region presents with fever, chills, and jaundice. Peripheral blood smear reveals the presence of ring-shaped parasites within erythrocytes. Further laboratory testing shows a positive result for Plasmodium falciparum histidine-rich protein 2 (HRP2). The MOST appropriate treatment for this patient is:

NEW QUESTION 45
A patient with recent abdominal surgery develops a fever, abdominal pain, and a wound infection. Gram stain of the wound exudate reveals a mixture of Gram-negative rods and Gram-positivebacilli. Anaerobic culture yields a foul-smelling, Gram-negative rod that is bile-esculin positive. The MOST likely organism is: