Fully interpret this Gram stain. There may be more than one organism present. Use the most specific terms to describe the organisms as possible.
Fully interpret this Gram stain. There may be more than one organism present. Use the most specific terms to describe the organisms as possible.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:### Gram Stain Interpretation
#### Instruction:
Fully interpret this Gram stain. There may be more than one organism present. Use the most specific terms to describe the organisms as possible.
#### Explanation of the Image:
The image is a photomicrograph of a Gram stain. It reveals different organisms which must be interpreted:
1. **Color Coding**:
- **Purple/Blue Cells**: These cells have retained the crystal violet stain, indicating they are Gram-positive.
- **Pink/Red Cells**: These cells have taken up the safranin counterstain, indicating they are Gram-negative.
2. **Morphology**:
- **Gram-positive Cocci**: The image shows clusters of Gram-positive cocci (appearing as small, round, purple/blue cells). These organisms arrange in clumps or clusters, typically indicative of *Staphylococcus* species.
- **Gram-negative Bacilli**: The image also displays rod-shaped, pink/red cells which are Gram-negative bacilli. The presence of rod-shaped bacteria suggests the presence of organisms such as *Escherichia coli* or *Pseudomonas aeruginosa* among others.
#### Summary:
- **Gram-positive Organisms**:
- Shape: Cocci
- Color: Purple/Blue
- Arrangement: Clusters
- **Gram-negative Organisms**:
- Shape: Bacilli
- Color: Pink/Red
- Arrangement: Single or in pairs
This microscopic examination allows for a preliminary identification of bacterial species and is crucial for directing appropriate antimicrobial treatment.
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