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What is cerebrospinal fluid analysis?
The procedure to remove cerebrospinal fluid is called a lumbar puncture, or spinal tap, because the area of the spinal column used to obtain the sample is in the lumbar spine, or lower section of the back.
What type of organism would you look for in a Gram stain of the blood or cerebrospinal fluid in a menin gococcal case?
In a Gram stain of blood or cerebrospinal fluid in a meningococcal case, you would look for Gram-negative diplococci, which are indicative of Neisseria meningitidis. These bacteria are the causative agent of meningococcal disease. Their appearance in the Gram stain can help diagnose the infection.
What are normal results for a cerebrospinal fluid analysis?
40-80 mg/dL glucose; 15-45 mg/dL protein; LD, 1/10 of serum level; less than 35 mg/dL lactate; 0-5/microL white blood cells (adults and children), up to 30/microL (newborns); negative Gram stain.
What is seminal stain?
A seminal stain is a biological fluid stain caused by semen. It is often analyzed in forensic investigations to determine the presence of semen on a surface or item. DNA analysis can be conducted on seminal stains to identify the donor.
What is the importance of hematoxylin stain in histology?
Hematoxylin stain is used in histology to selectively stain cell nuclei blue, allowing for better visualization of tissue morphology and structures. It serves as a contrast stain in combination with eosin stain, highlighting cellular and tissue features for microscopic analysis and diagnosis.
What is cerebrospinal fluid analysis?
The procedure to remove cerebrospinal fluid is called a lumbar puncture, or spinal tap, because the area of the spinal column used to obtain the sample is in the lumbar spine, or lower section of the back.
What type of organism would you look for in a Gram stain of the blood or cerebrospinal fluid in a menin gococcal case?
In a Gram stain of blood or cerebrospinal fluid in a meningococcal case, you would look for Gram-negative diplococci, which are indicative of Neisseria meningitidis. These bacteria are the causative agent of meningococcal disease. Their appearance in the Gram stain can help diagnose the infection.
What are normal results for a cerebrospinal fluid analysis?
40-80 mg/dL glucose; 15-45 mg/dL protein; LD, 1/10 of serum level; less than 35 mg/dL lactate; 0-5/microL white blood cells (adults and children), up to 30/microL (newborns); negative Gram stain.
What is seminal stain?
A seminal stain is a biological fluid stain caused by semen. It is often analyzed in forensic investigations to determine the presence of semen on a surface or item. DNA analysis can be conducted on seminal stains to identify the donor.
What is Wright's stain?
A chemical used to stain tissue samples for laboratory analysis.
Does vaginal fluid stain clothes?
Yes, vaginal fluids can stain clothes if they are not washed out promptly. It is recommended to rinse the affected clothing with cold water and then wash it with a stain remover to prevent the stain from setting.
What is the importance of hematoxylin stain in histology?
Hematoxylin stain is used in histology to selectively stain cell nuclei blue, allowing for better visualization of tissue morphology and structures. It serves as a contrast stain in combination with eosin stain, highlighting cellular and tissue features for microscopic analysis and diagnosis.
Can you tell how old a blood stain is?
No, the age of a blood stain cannot be determined solely by looking at it. Factors like environment, fabric type, and blood volume can affect the appearance of a stain. In forensic investigations, chemical testing and analysis are used to estimate the age of a blood stain.
What does a negative result for a spore stain indicate about the organism?
A negative result for a spore stain indicates that the organism does not form endospores. Endospore formation is a survival mechanism for some bacteria to withstand harsh environments, so a negative result suggests that the organism may be more susceptible to environmental stressors.
What is the procedure for using the p-anisaldehyde stain in histological analysis?
To use the p-anisaldehyde stain in histological analysis, first prepare a solution of p-anisaldehyde in glacial acetic acid. Then, apply the stain to the tissue sample on a microscope slide and allow it to react for a specific amount of time. Rinse the slide with alcohol and water to remove excess stain. Finally, examine the stained tissue under a microscope to observe any specific structures or features.
How does the price of the stain remover affect its performance?
The price of a stain remover does not necessarily indicate its performance. Some affordable stain removers can work just as effectively as more expensive ones. It's essential to look at the product's ingredients and customer reviews to determine its performance.
What stain do you use to see banding patterns in chromosomes?
Giemsa is the most common stain used to see banding patterns in chromosomes
