Which hematological finding is characteristically present during an acute infection_______________?
Show answer Hide answer
Answer: C. Neutrophilia
Explanation
Acute bacterial infections provoke a strong immune response involving the rapid release of stored neutrophils. The bone marrow increases granulopoiesis and mobilizes immature neutrophil bands into the circulating blood. This elevated neutrophil count represents the classic hematological finding known clinically as neutrophilic leukocytosis. Neutrophils are the most abundant type of white blood cell and act as primary phagocytic defenders. Leukocytosis is formally defined as an elevated total white blood cell count above normal limits. A shift to the left often accompanies neutrophilia, indicating increased release of immature forms.
Complete blood count panels with differentials are essential diagnostic tools for evaluating suspected infections. Detecting neutrophilia helps clinicians distinguish acute bacterial processes from viral illnesses or other etiologies. Persistent leukocytosis may signal severe systemic inflammation, tissue necrosis, or underlying hematologic disease. Leucopenia refers to a decreased total white blood cell count and typically occurs in viral infections. Neutropenia describes an abnormally low neutrophil count, increasing vulnerability to severe bacterial pathogens. Option C specifies the exact white blood cell subtype elevated, making it more precise than general leukocytosis.
Related questions
Q1. During an isotonic muscle contraction________________?
Show answer Hide answer
Answer: A. The muscle moves a load through a distance
During an isotonic contraction, muscle tension remains constant while the muscle changes length to move a load. Moving a physical load through a measurable distance requires shortening the muscle fibers against a constan...
Q2. Within a DNA molecule, adenine consistently forms specific bonds with______________?
Show answer Hide answer
Answer: C. Thymine
Adenine forms specific complementary hydrogen bonds with thymine in DNA molecules. This strict base-pairing rule maintains the uniform geometry of the double helix. Option C is correct because adenine consistently pairs...
Q3. When antiserum A, antiserum B, and Rh factor are introduced to a blood sample and no agglutination occurs, this indicates_______________?
Show answer Hide answer
Answer: B. O group and Rh- ve
A lack of agglutination with anti-A, anti-B, and Rh antisera indicates blood type O and Rh-negative. Agglutination occurs only when antibodies bind to their specific matching surface antigens on red blood cells. The abse...
Q4. In the Haldane effect, in which direction is the CO2 dissociation curve displaced_____________?
Show answer Hide answer
Answer: B. Right
The Haldane effect dictates that deoxygenated blood binds carbon dioxide more readily, shifting the dissociation curve rightward. As hemoglobin unloads oxygen in active tissues, its chemical affinity for carbon dioxide i...
Q5. Congenital hypothyroidism in pediatric patients results in_____________?
Show answer Hide answer
Answer: B. Cretinism
Congenital hypothyroidism in infants leads directly to a clinical syndrome called cretinism. Thyroid hormone deficiency disrupts normal somatic growth and neural maturation. Option B is correct because cretinism results...
Q6. Jaundice characterized by unconjugated hyperbilirubinemia is most frequently attributed to __________?
Show answer Hide answer
Answer: D. Increased break down of red cells
Unconjugated hyperbilirubinemia is typically caused by conditions that accelerate red blood cell destruction like hemolysis. Excessive breakdown of hemoglobin overwhelms the liver capacity to conjugate the resulting bili...