How do gram-positive and negative stains react differently to antibiotics?

How do gram-positive and negative stains react differently to antibiotics?
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The only thing that Gram- and Gram+ have to do with antibiotics is that each stain can give a clue as to which antibiotic might work against the microbe being stained. The outer membrane of Gram-negative microbes prevents antibiotics from entering. Gram-negative bacteria include: E. coli, Salmonella, Shigella, Yersinia. These resistant to penicillin, streptomycin and ampicillin. Most infections due to Gram-positive organisms can be treated with quite a small number of antibiotics. Penicillin, cloxacillin, and erythromycin should be enough to cover 90 per cent of Gram-positive infections.
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If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually resistant species, penicillin is not indicated c. Immediate operative intervention and aggressive resection of all involved tissues is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Description : If a necrotizing soft tissue infection is considered, therapy mandates: a. Empiric administration of antibiotics active against gram-positive, gram-negative, and anaerobic bacteria b. Due to usually ... is mandatory d. The use of hyperbaric oxygen has been demonstrated to be clearly advantageous

Last Answer : Answer: a, c Identification of a necrotizing, soft tissue infection mandates immediate operative intervention with aggressive resection of all involved tissues and empiric ... remains without controlled trials demonstrating any additional benefits derived from hyperbaric oxygen therapy

Superinfections are more common with (a) Use of narrow spectrum antibiotics (b) Short courses of antibiotics (c) Use of antibiotics that are completely absorbed from the small intestines (d) Use of antibiotic combinations covering both gram positive and gram negative bacteria

Description : Superinfections are more common with (a) Use of narrow spectrum antibiotics (b) Short courses of antibiotics (c) Use of antibiotics that are completely absorbed from the small intestines (d) Use of antibiotic combinations covering both gram positive and gram negative bacteria

Last Answer : Ans: D

Common cold is not cured by antibiotics because it is (a) caused by a virus (b) caused by a Gram-positive bacterium (c) caused by a Gram-negative bacterium (d) not an infectious disease.

Description : Common cold is not cured by antibiotics because it is (a) caused by a virus (b) caused by a Gram-positive bacterium (c) caused by a Gram-negative bacterium (d) not an infectious disease.

Last Answer : (b) caused by a Gram-positive bacterium

Superinfections are more common with: A. Use of narrow spectrum antibiotics B. Short courses of antibiotics C. Use of antibiotics that are completely absorbed from the small intestines D. Use of antibiotic combinations covering both gram positive and gram negative bacteria

Description : Superinfections are more common with: A. Use of narrow spectrum antibiotics B. Short courses of antibiotics C. Use of antibiotics that are completely absorbed from the small intestines D. Use of antibiotic combinations covering both gram positive and gram negative bacteria

Last Answer : D. Use of antibiotic combinations covering both gram positive and gram negative bacteria

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Aminoglycoside antibiotics have the following property common to all members: A. They are primarily active against aerobic gram negative bacilli B. They are more active in acidic medium C. They readily enter cells and are distributed in total body water D. They are nearly completely metabolized in liver

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Last Answer : Ans: A

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Difference in Gram positive and Gram negative bacteria is due to (a) cell wall (b) cell membrane (c) ribosome (d) cytoplasm.

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Last Answer : (a) cell wall

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Subgingival plaque changes from, A. gram positive to gram negative B. gram negative to gram positive

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The third generation cephalosporins differ from the first generation cephalosporins in that they are: A. More active against gram positive cocci B. More active against gram negative enterobacteriaceae C. Nonimmunogenic D. Not excreted by tubular secretion

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Which of the following is a second generation cephalosporin that is highly resistant to gram negative β-lactamases, and cures penicillinase positive as well as negative gonococcal infection by a single intramuscular dose: A. Cephalexin B. Cefuroxime C. Cefoperazone D. Ceftazidime

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How do you react to stereotypical/negative/sexist remarks/actions in your direction when they are seemingly positive in the offender's mind?

Description : How do you react to stereotypical/negative/sexist remarks/actions in your direction when they are seemingly positive in the offender's mind?

Last Answer : Personally that type of thing doesn't bother me. I have too many other things to worry about than comments like that. If the person made it sound like a back handed compliment deliberately (in order to be ... something like yeah that's just one of my many party tricks and then get on with my day!

Which of the following statement(s) is/are true concerning the role of antibiotics in wound care? a. Systemic antibiotics are indicated for all open wounds b. Bacterial resistance can occur with systemic but not topical antibiotics c. An indication for systemic antibiotic administration is a granulation tissue bacterial count in excess of greater than 105 organisms/gram of tissue on quantitative analysis d. Silver sulfadiazine is useful only for the management of burns

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An adult patient with a history of bacterial endocarditis requires prophylactic administration of antibiotics prior to removal of teeth. Indicate the pre-operative regimen:** A. Amoxicillin 2 gram one hour before operation orally B. Penicillin 250 mg orally six hours before operation C. Tetracycline 250-500 mg orally 2 hours before treatment

Description : An adult patient with a history of bacterial endocarditis requires prophylactic administration of antibiotics prior to removal of teeth. Indicate the pre-operative regimen:** A. Amoxicillin 2 gram ... orally six hours before operation C. Tetracycline 250-500 mg orally 2 hours before treatment

Last Answer : A. Amoxicillin 2 gram one hour before operation orally

Have you ever noticed a color or an outfit that makes people react differently towards you?

Description : Have you ever noticed a color or an outfit that makes people react differently towards you?

Last Answer : answer:It's not just folk wisdom that people judge you based on your appearance. And people, with just a little change of wardrobe and nothing else, can quite easily appear to be a certain ... applies to things like perceived race and gender performances, as well. It's not even conscious, often.

My Mom thinks that my Panic Disorder is not caused from my past traumatic experience because she has had traumatic experiences as well but does not have panic disorder, is it possible that different people react differently?

Description : My Mom thinks that my Panic Disorder is not caused from my past traumatic experience because she has had traumatic experiences as well but does not have panic disorder, is it possible that different people react differently?

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What are Gram-Negative bacteria? -Biology

Description : What are Gram-Negative bacteria? -Biology

Last Answer : answer:

Is Mycobacteria a gram negative?

Description : Is Mycobacteria a gram negative?

Last Answer : Feel Free to Answer

Meningitis - gram-negative?

Description : Meningitis - gram-negative?

Last Answer : DefinitionGram-negative meningitis is an infection of the membranes covering the brain and spinal cord (meninges) caused by bacteria that turn pink when exposed to a special stain (gram-negative bacteria) ... is much more common in infants than adults.Risk factors in adults and children include:Lo

Which of the following statement(s) is/are true concerning septic shock? a. The clinical picture of gram negative septic shock is specifically different than shock associated with other infectious agents b. The circulatory derangements of septic shock precede the development of metabolic abnormalities c. Splanchnic vascular resistance falls in similar fashion to overall systemic vascular resistance d. Despite normal mechanisms of intrinsic expansion of the circulating blood volume, exogenous volume resuscitation is necessary

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Last Answer : Answer: d The clinical findings in sepsis and septic shock represent the host response to infection. Gram-positive and gram-negative bacteria, viruses, fungi, rickettsiae, and ... intravascular volume, exogenous volume resuscitation must be provided to restore venous return and ventricular filling

A 67-year-old male presents with an intraabdominal abscess secondary to perforated sigmoid diverticulitis. The following statement(s) is/are true concerning his intraabdominal abscess. a. Culture will likely reveal a solitary organism b. Both aerobic and anaerobic islets are encountered in 50% of specimens c. The most common aerobic islet will be likely E. coli and other gram-negative enteric bacilli d. The most common anaerobic islet will be a Bacteroides species

Description : A 67-year-old male presents with an intraabdominal abscess secondary to perforated sigmoid diverticulitis. The following statement(s) is/are true concerning his intraabdominal abscess. a. Culture will ... gram-negative enteric bacilli d. The most common anaerobic islet will be a Bacteroides species

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A 67-year-old male with advanced cholangiocarcinoma develops gram-negative sepsis. Excessive bleeding is noted around vascular catheters and from needle puncture sites. The diagnosis of disseminated intervascular coagulation (DIC) is considered. Which of the following laboratory test(s) is/are indicative of DIC? a. Decreased platelet count b. Decreased fibrinogen level c. Normal prothrombin time d. Elevated fibrin split products

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Last Answer : Answer: a, b, d Disseminated intravascular coagulation (DIC) is the primary form of acute thrombosis. Causes of this syndrome include abruptio placenta, gram-positive and gram-negative sepsis, ... decline in the platelet count and fibrinogen level, along with an elevation of fibrin split products

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Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded ... bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

Last Answer : Ans: B

Cefotaxime has the following properties except (a) It is highly active against aerobic gram negative bacteria (b) It is the most active cephalosporin against Pseudomonas aeruginosa (c) It produces an active metabolite (d) It has achieved high cure rates in serious hospital acquired infections

Description : Cefotaxime has the following properties except (a) It is highly active against aerobic gram negative bacteria (b) It is the most active cephalosporin against Pseudomonas aeruginosa (c) It produces an active metabolite (d) It has achieved high cure rates in serious hospital acquired infections

Last Answer : Ans: B