May 26, 2022 · The first test they’ll use is called Gram staining. The Gram stain looks for bacteria in the sample and determines the type of bacteria causing a condition. Your healthcare …

Haemophilus species are Gram-negative coccobacilli similar in ultrastructural features to other pathogenic bacilli. Haemophilus influenzae requires hemin (factor X) and NAD+ (factor V) for …

The laboratory diagnosis of H. influenzae is based on growth and colony morphology in chocolate agar, and cell morphology on Gram staining. These are confirmed by the haemophilic …

Sputum Gram stain at 1000x magnification. The sputum is from a person with Haemophilus influenzae pneumonia, and the Gram negative coccobacilli are visible with a background of …

Apr 27, 2023 · Laboratory tests are done on samples obtained from body fluids. The initial test is Gram staining, which reveals pleomorphic gram-negative coccobacilli. Cultures of blood and …

Aug 10, 2022 · Slender, short, gram negative rods or coccobacillus 3-0.5 um X 0.5-1 um with rounded ends. Prolonged counterstaining for 5-15 minutes with very dilute carbol fuschin often …

Gram stain. Small, pleomorphic Gram negative rods 0.2-0.3 x 0.5-0.8 µm, may range from coccobacilli to filamentous rods. Elongated forms from sputum may exhibit bipolar staining, …

Dec 7, 2023 · This stain is used to differentiate bacteria into two categories – Gram-positive and Gram-negative. H influenzae, also known as Hemophilus influenzae, is a pathogen that falls …

Haemophilus influenzae is a nonmotile, Gram-negative, rod-shaped bacterium. The rounded ends of short (0.5-1.5 μm) bacilli make many appear round, hence the term coccobacilli. Microscopy …

Haemophilus influenzae is a nonmotile, Gram-negative, rod-shaped bacterium. Organisms grown on agar ptales (or seen in sputum) usually show a highly regular shape. The rounded ends of …