A gram stain is a lab test used to detect bacteria or fungi in a sample taken from the site of a suspected infection it gives relatively quick, preliminary results as to whether microbes are present and, if so, the general type(s) causing an infection. Lab report 1 (1) lab report 2 (1) unknown culture report (1) lecture (13) disease report (1) lecture textbook (5) chapter 14 principles of disease and epidemiology (1) in the gram stain the decolorizing agent is ethyl-alcohol whereas in the acid-fast stain the decolorizing agent is acid-alcohol 3 what diseases are diagnosed. A stool gram stain is a laboratory test that uses different stains to detect and identify bacteria in a stool sample the gram stain technique is a more complex staining technique, which is see other file for gram stain, endospore, acidfast, and capsule staining. Basic microbiology lab reporting gram staining ap biology unknown bacteria lab report microbiology gram stain lab report micro lab report 1 bacteria lab report pure culture lab laboratory report 7 - copy bacterial count complete lab report 2 - selective and differential media.
The gram staining technique is the most important and widely used microbiological differential staining technique it was developed by dr christian gram in 1884, and categorizes bacteria according to their gram character (gram positive or gram negative. Reading and reporting gram stained direct smears (online course) (based on 2039 customer ratings) authors: betty smith, mt (ascp), jaimy hill, mt (ascp) has your laboratory ever had difficulty correctly reporting out cerebrospinal and joint fluid gram stains during off hours. The gram stain is a differential stain, as opposed to the simple stain which uses 1 dye differential stains use 2 or more dyes, producing different colored cells depending on their chemical and physical properties. Fe204 microbiology lab report the gram stain and simple stain smear purpose preparation of smear and application of simple stain to observe size,shape, arrangement, color of the microorganisms using oil immersion objectiveand application of differential staining method and classify microorganism as gram positive, gram negative theory.
Gram stain techniques identify bacteria as gram-positive which is the stain is retained or gram-negative which means the stain is washed in 1884, hans christian gram discovered that crystal violet irreversibly stains certain bacteria but can be washed from others. Unformatted text preview: positiveall gram-positive cells are purple in color when stained this week is different then the simple staining lab we did previously because we stained with multiple dyes so it could have came out red or purple rather then automatically purple. Thus gram-positive cells do not decolorize with ethanol, and gram-negative cells do decolorize this allows the gram-negative cells to accept the counter stain safranin gram-positive cells will appear blue to purple, while gram-negative cells will appear pink to red. 07-14-10, lab report 10-2-10, lab report 07-7-10, lab report, gram stain of csf secondary to suspected diagnosis of meningitis preliminary report available at 1 day, final report within 2 - 5 days the laboratory report has been enhanced, asking students to apply the.
Lab report number two date: 3/25/2010 inal attachment lab experiment number 11 purpose: to learn the gram stain technique, the reason for the stain, and how to identify the results of the organisms stained. 301 moved permanently nginx. Gram stain - principle - differential stain in which a decolorization (95% alcohol solution) step occurs between the application of 2 basic stains - gram positive cell walls are rich in mucopolysaccharides - resist decolorization. Gram stain procedure attempted, student was able to stain and identify types of bacteria __3__2__1__0 overall presentation - report shows attention to detail, provides evidence from the lab, organized __3__2__1__0.
Unknown lab report unknown number 109 tyler wolfangel april 29, 2014 four were chosen at random and gram stains were performed on each (procedure for the gram stain was used according to mcdonald’s laboratory manual) each of the four gram stains showed positive rods seeing that no negative gram stains were observed, a different. Most differential stains have a challenge step that follows staining with a primary dye in the gram stain the challenge step is a rinse with either ethanol or acetone (either may be used. A gram stain was taken from a sample of the bacteria growing on the nutrient agar the gram stain turned out to be a positive rod gram stain all the following procedures were carried out on the gram positive rod unknown in this order.
The gram stain is the most frequently used stain in a clinical microbiology laboratory and is usually the first step in identifying bacteria 160–161 wet mounts, 80–81 lab report bacterial unknown form, 207, 210. A sputum gram’s stain is a laboratory test that allows your doctor to diagnose a bacterial infection in your respiratory tract they may order it if you have symptoms of a respiratory infection. Microbiology laboratory(tfmb1001) report experiment tittle gram stain experiment date 24october2014 submission date 31october2014 students name tittle the gram stain is a differential stain that allows you to classify bacteria as either gram positive or gram negative. Gram staining is a bacteriological laboratory technique used to differentiate bacterial species into two large groups (gram-positive and gram-negative) based on the physical properties of their cell walls.