Select the most potent tetracycline antibiotic (a) Demeclocycline (b) Methacycline (c) Minocycline (d) Doxycycline

Select the most potent tetracycline antibiotic (a) Demeclocycline (b) Methacycline (c) Minocycline (d) Doxycycline
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Select the most potent tetracycline antibiotic: A. Demeclocycline B. Oxytetracycline C. Minocycline D. Doxycycline

Description : Select the most potent tetracycline antibiotic: A. Demeclocycline B. Oxytetracycline C. Minocycline D. Doxycycline

Last Answer : C. Minocycline

The most suitable tetracycline for use in a patient with impaired renal function is (a) Chlortetracycline (b) Demeclocycline (c) oxytetracycine (d) Doxycycline

Description : The most suitable tetracycline for use in a patient with impaired renal function is (a) Chlortetracycline (b) Demeclocycline (c) oxytetracycine (d) Doxycycline

Last Answer : Ans: D

The tetracycline with highest antileprotic activity is: A. Minocycline B. Doxycycline C. Demeclocycline D. Oxytetracycline

Description : The tetracycline with highest antileprotic activity is: A. Minocycline B. Doxycycline C. Demeclocycline D. Oxytetracycline

Last Answer : A. Minocycline

The following tetracycline has the potential to cause vestibular toxicity: A. Minocycline B. Demeclocycline C. Doxycycline D. Tetracycline

Description : The following tetracycline has the potential to cause vestibular toxicity: A. Minocycline B. Demeclocycline C. Doxycycline D. Tetracycline

Last Answer : D. Tetracycline

Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because (a) It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low (b) It is inactivated by the gut microflora (c) It is not active against the microbes of the normal gut flora (d) It is a potent tetracycline and inhibits the superinfection causing microbes as well

Description : Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because (a) It is completely absorbed in the small intestines so that drug concentration in the colonic ... (d) It is a potent tetracycline and inhibits the superinfection causing microbes as well

Last Answer : Ans: A

In which of the following groups do all four drugs warrant careful monitoring for drugrelated seizures in high-risk patients? (a) Penicillin G, imipenem, amphotericin B, metronidazol (b) Penicillin G, chlormphenicol, tetracycline, vancomycin (c) Imipenem, tetracycline, vancomycin, sulfadiazine (d) Cycloserine, metronidazole, vancomycin, sulfadiazine (e) Metronidazole, imipenem, doxycycline, erythromycin

Description : In which of the following groups do all four drugs warrant careful monitoring for drugrelated seizures in high-risk patients? (a) Penicillin G, imipenem, amphotericin B, metronidazol ... (d) Cycloserine, metronidazole, vancomycin, sulfadiazine (e) Metronidazole, imipenem, doxycycline, erythromycin

Last Answer : Ans: A

Which one of the following antibiotics is a potent inducer of hepatic drug-metabolizing enzymes? (a) Ciprofloxacin (b) Cyclosporine (c) Erythromycin (d) Rifampin (e) Tetracycline

Description : Which one of the following antibiotics is a potent inducer of hepatic drug-metabolizing enzymes? (a) Ciprofloxacin (b) Cyclosporine (c) Erythromycin (d) Rifampin (e) Tetracycline

Last Answer : Ans: D

he most suitable tetracycline for use in a patient with impaired renal function is: A. Tetracycline B. Demeclocycline C. Oxytetracycline D. Doxycycline

Description : he most suitable tetracycline for use in a patient with impaired renal function is: A. Tetracycline B. Demeclocycline C. Oxytetracycline D. Doxycycline

Last Answer : D. Doxycycline

Prolonged oral therapy with the following antibiotic can damage intestinal villi resulting in statorrhoea and loose motions (a) Ampicillin (b) Tetracycline (c) Neomycin (d) Nystatin

Description : Prolonged oral therapy with the following antibiotic can damage intestinal villi resulting in statorrhoea and loose motions (a) Ampicillin (b) Tetracycline (c) Neomycin (d) Nystatin

Last Answer : Ans: C

An 8-year-old child presented with brownish discoloured and deformed anterior teeth. History of having received an antibiotic about 4 years earlier was obtained. Which antibiotic could be responsible for the condition ? (a) Chloramphenicol (b) Tetracycline (c) Erythromycin (d) Genetamicin

Description : An 8-year-old child presented with brownish discoloured and deformed anterior teeth. History of having received an antibiotic about 4 years earlier was obtained. Which antibiotic could be responsible for the condition ? (a) Chloramphenicol (b) Tetracycline (c) Erythromycin (d) Genetamicin

Last Answer : Ans: B

In a patient with culture-positive enterococcal endocarditis who has failed to respond to vancomycin because of resistance, the treatment most likely to be effective is (a) Clarithromycin (b) Erythromycin (c) Linezolid (d) Minocycline (e) Ticarcillin

Description : In a patient with culture-positive enterococcal endocarditis who has failed to respond to vancomycin because of resistance, the treatment most likely to be effective is (a) Clarithromycin (b) Erythromycin (c) Linezolid (d) Minocycline (e) Ticarcillin

Last Answer : Ans: D

Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because: A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low B. It is inactivated by the gut microflora C. It is not active against the microbes of the normal gut flora D. It is a potent tetracycline and inhibits

Description : Compared to older tetracyclines, doxycycline produces a lower incidence of superinfection diarrhoea because: A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents ... the microbes of the normal gut flora D. It is a potent tetracycline and inhibits

Last Answer : A. It is completely absorbed in the small intestines so that drug concentration in the colonic contents is low

Select the antibiotic whose dose must be reduced in patients with renal insufficiency (a) Ampicillin (b) Chloramphenicol (c) Tobramycin (d) Erythromycin

Description : Select the antibiotic whose dose must be reduced in patients with renal insufficiency (a) Ampicillin (b) Chloramphenicol (c) Tobramycin (d) Erythromycin

Last Answer : Ans: C

Select the antibiotic with a high therapeutic index (a) Streptomycin (b) Doxy (c) Cephalexin (d) Polymyxin B

Description : Select the antibiotic with a high therapeutic index (a) Streptomycin (b) Doxy (c) Cephalexin (d) Polymyxin B

Last Answer : Ans: C

A single oral dose of the following drug can cure most cases of uncomplicated gonorrhoea (a) Ciprofloxacin (b) Cotrimoxazole (c) Spectinomycin (d) Doxycycline

Description : A single oral dose of the following drug can cure most cases of uncomplicated gonorrhoea (a) Ciprofloxacin (b) Cotrimoxazole (c) Spectinomycin (d) Doxycycline

Last Answer : Ans: A

The appearance of markedly vacuolated, nucleated red cells in the marrow, anemia, and reticulocytopenia are characteristic dose-dependent side effects of (a) Azithromycin (b) Chloramphenicol (c) Clindamycin (d) Doxycycline (e) Linezolid

Description : The appearance of markedly vacuolated, nucleated red cells in the marrow, anemia, and reticulocytopenia are characteristic dose-dependent side effects of (a) Azithromycin (b) Chloramphenicol (c) Clindamycin (d) Doxycycline (e) Linezolid

Last Answer : Ans: C

Which out of the following antibiotics penetrates blood-CSF barrier the best (a) Erythromycin (b) Gentamicin (c) Tetracycline (d) Chloramphenicol

Description : Which out of the following antibiotics penetrates blood-CSF barrier the best (a) Erythromycin (b) Gentamicin (c) Tetracycline (d) Chloramphenicol

Last Answer : Ans: D

The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes and inhibit bacterial protein synthesis (c) They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes ... peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : Ans: B

The drug of choice for scarlet fever is (a) Tetracycline (b) Sulfonamides (c) Penicillin (d) Chloromycetin (e) Novobiocin

Description : The drug of choice for scarlet fever is (a) Tetracycline (b) Sulfonamides (c) Penicillin (d) Chloromycetin (e) Novobiocin

Last Answer : Ans: C

In the empiric treatment of severe bacterial infections of unidentified entiology, this drug, often used in combination with an aminoglycoside, provides coverage against many staphylococci (a) Amoxicillin (b) Clavulanic acid (c) Erythromycin (d) Nafcillin (e) Tetracycline

Description : In the empiric treatment of severe bacterial infections of unidentified entiology, this drug, often used in combination with an aminoglycoside, provides coverage against many staphylococci (a) Amoxicillin (b) Clavulanic acid (c) Erythromycin (d) Nafcillin (e) Tetracycline

Last Answer : Ans: D

Your 23-year-old female patient is pregnant and has gonorrhea. The past medical history includes anaphylaxis following exposure to amoxicillin. Worried about compliance, you would like to treat this patient with a singly dose, so you chose (a) Cefixime (b) Ceftriaxone (c) Ciprofloxacin (d) Spectinomycin (e) Tetracycline

Description : Your 23-year-old female patient is pregnant and has gonorrhea. The past medical history includes anaphylaxis following exposure to amoxicillin. Worried about compliance, you would like to treat this patient ... chose (a) Cefixime (b) Ceftriaxone (c) Ciprofloxacin (d) Spectinomycin (e) Tetracycline

Last Answer : Ans: D

The mechanism of antibacterial action of tetracycline involves (a) Binding to a component of the 50S ribosomal subunit (b) Inhibition of translocase activity (c) Blockade of binding of aminoacyl – tRNA to bacterial ribosomes (d) Selective inhibition of ribosomal peptidyl transferases (e) Inhibition of DNA–dependent RNA polymerase

Description : The mechanism of antibacterial action of tetracycline involves (a) Binding to a component of the 50S ribosomal subunit (b) Inhibition of translocase activity (c) Blockade of binding of ... (d) Selective inhibition of ribosomal peptidyl transferases (e) Inhibition of DNA-dependent RNA polymerase

Last Answer : Ans: C

Can anyone help me understand antibiotic resistance?

Description : Can anyone help me understand antibiotic resistance?

Last Answer : Sorry there are a few grammar issues in the above but I can’t edit it anymore.

Does misusing Polysporin create antibiotic resistance?

Description : Does misusing Polysporin create antibiotic resistance?

Last Answer : Define “misusing”.

How can I get an antibiotic without seeing a doctor?

Description : How can I get an antibiotic without seeing a doctor?

Last Answer : Mexico. The chances of you having an infection requiring antibiotics in both you colon and sinuses simultaneously is low. If you have a condition where you have a supressed immune system and you get these ... your issues are viral, and do not need antibiotics. Can you tell me more of your symptoms?

Antibiotic query ... about reactions?

Description : Antibiotic query ... about reactions?

Last Answer : i dont blame you…penicillin almost killed me once. anaphalaxis. I rarely take antibiotics now. Just be aware.

Should I take an antibiotic as a prophylactic after deer tick bite?

Description : Should I take an antibiotic as a prophylactic after deer tick bite?

Last Answer : I would say no. The tick bite antibiotics are strong and will make you ill. I would only take it once symptoms appear. Plus, if you take it preventatively, you will never know if you ever contracted lyme disease.

Highest incidence of antibiotic associated pseudo membranous enterocolitis has been noted with the use of (a) Ampicillin (b) Chloramphenicol (c) Vancomycin (d) Clindamycin

Description : Highest incidence of antibiotic associated pseudo membranous enterocolitis has been noted with the use of (a) Ampicillin (b) Chloramphenicol (c) Vancomycin (d) Clindamycin

Last Answer : Ans: D

The following antibiotic is a first line drug for treatment of Mycobacterium avium complex infection in AIDS patients (a) Clindamycin (b) Clarithromycin (c) Roxithromycin (d) Erythromycin

Description : The following antibiotic is a first line drug for treatment of Mycobacterium avium complex infection in AIDS patients (a) Clindamycin (b) Clarithromycin (c) Roxithromycin (d) Erythromycin

Last Answer : Ans: B

An aminoglycoside antibiotic should not be used concurrently with the following drug (a) Ampicillin (b) Vancomycin (c) Ciprofloxacin (d) Rifampin

Description : An aminoglycoside antibiotic should not be used concurrently with the following drug (a) Ampicillin (b) Vancomycin (c) Ciprofloxacin (d) Rifampin

Last Answer : Ans: B

The aminoglycoside antibiotic which is distinguished by its resistance to bacterial aminoglycoside inactivating enzymes is (a) Kanamycin (b) Sisomicin (c) Amikacin (d) Tobramycin

Description : The aminoglycoside antibiotic which is distinguished by its resistance to bacterial aminoglycoside inactivating enzymes is (a) Kanamycin (b) Sisomicin (c) Amikacin (d) Tobramycin

Last Answer : Ans: C

The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is (a) Plasmid mediated acquisition of aminoglycoside conjugating enzyme (b) Mutational acquisition of aminoglycoside hydrolyzing enzyme (c) Mutation reducing affinity of ribosomal protein for the antibiotic (d) Mutational loss of porin channels

Description : The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is (a) Plasmid mediated acquisition of aminoglycoside conjugating enzyme (b) Mutational acquisition of aminoglycoside ... affinity of ribosomal protein for the antibiotic (d) Mutational loss of porin channels

Last Answer : Ans: A

Which aminoglycoside antibiotic causes more hearing loss than vestibular disturabance as toxic effect ? (a) Streptomycin (b) Gentamicin (c) Kanamycin (d) Sisomicin

Description : Which aminoglycoside antibiotic causes more hearing loss than vestibular disturabance as toxic effect ? (a) Streptomycin (b) Gentamicin (c) Kanamycin (d) Sisomicin

Last Answer : Ans: C

What is break point concentration of an antibiotic ? (a) Concentration at which the antibiotic lyses the bacteria (b) Concentration of the antibiotic which demarks between sensitive and resistant bacteria (c) Concentration of the antibiotic which overcomes bacterial resistance (d) Concentration at which a bacteriostatic antibiotic becomes bactericidal

Description : What is break point concentration of an antibiotic ? (a) Concentration at which the antibiotic lyses the bacteria (b) Concentration of the antibiotic which demarks between sensitive ... which overcomes bacterial resistance (d) Concentration at which a bacteriostatic antibiotic becomes bactericidal

Last Answer : Ans: B

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

A man has an Escherichia coli bacteremia with a low-grade fever (101.6°F). Appropriate management of his fever would be (a) Give acetaminophen 650 mg orally every 4 hours (b) Give aspirin 650 mg orally every 4 hours (c) Give alternating doses of aspirin and acetaminophen every 4 hours (d) Withhold antipyretics, and use the fever curve to monitor his response to antibiotic therapy (e) Use tepid water baths to reduce the fever

Description : A man has an Escherichia coli bacteremia with a low-grade fever (101.6°F). Appropriate management of his fever would be (a) Give acetaminophen 650 mg orally every 4 hours (b) Give aspirin 650 ... fever curve to monitor his response to antibiotic therapy (e) Use tepid water baths to reduce the fever

Last Answer : Ans: D

Widespread and prolonged used of an antibiotic leads to emergence of drug resistant strains because antibiotics (a) Induce mutation in the bacteria (b) Promote conjugation among bacteria (c) Allow resistant strains to propagate preferentially (d) All of the above

Description : Widespread and prolonged used of an antibiotic leads to emergence of drug resistant strains because antibiotics (a) Induce mutation in the bacteria (b) Promote conjugation among bacteria (c) Allow resistant strains to propagate preferentially (d) All of the above

Last Answer : Ans: C

Spectinomycin is an aminoglycoside-like antibiotic indicated for the treatment of (a) Gram-negative bacillary septicemia (b) Tuberculosis (c) Penicillin-resistant gonococcal infections (d) Syphilis (e) Gram-negative meningitis due to susceptible organisms

Description : Spectinomycin is an aminoglycoside-like antibiotic indicated for the treatment of (a) Gram-negative bacillary septicemia (b) Tuberculosis (c) Penicillin-resistant gonococcal infections (d) Syphilis (e) Gram-negative meningitis due to susceptible organisms

Last Answer : Ans: C

The persistent suppression of bacterial growth that may occur following limited exposure to some antimicrobial drugs is called (a) Time-dependent killing (b) The post antibiotic effect (c) Clinical synergy (d) Concentration – dependent killing (e) Sequential blockade

Description : The persistent suppression of bacterial growth that may occur following limited exposure to some antimicrobial drugs is called (a) Time-dependent killing (b) The post antibiotic effect (c) Clinical synergy (d) Concentration – dependent killing (e) Sequential blockade

Last Answer : Ans: B

A patient needs antibiotic treatment for native valve, culture-positive infective enterococcal endocarditis. His medical history includes a severe anaphylactic reaction to penicillin G during the past year. The best approach would be treatment with (a) Amoxicillin/clavulanate (b) Aztreonam (c) Cefazolin plus genatamicin (d) Meropenem (e) Vancomycin

Description : A patient needs antibiotic treatment for native valve, culture-positive infective enterococcal endocarditis. His medical history includes a severe anaphylactic reaction to penicillin G during the past year. ... /clavulanate (b) Aztreonam (c) Cefazolin plus genatamicin (d) Meropenem (e) Vancomycin

Last Answer : Ans: E

Select the antibiotic(s) that can be used to treat nonspecific urethritis due to Chlamydia trachomatis: A. Azithromycin B. Doxycycline C. Clindamycin D. Both 'A' and 'B' are correct

Description : Select the antibiotic(s) that can be used to treat nonspecific urethritis due to Chlamydia trachomatis: A. Azithromycin B. Doxycycline C. Clindamycin D. Both 'A' and 'B' are correct

Last Answer : D. Both 'A' and 'B' are correct

Select the antibiotic that has a high therapeutic index: A. Streptomycin B. Doxycycline C. Cephalexin D. Vancomycin

Description : Select the antibiotic that has a high therapeutic index: A. Streptomycin B. Doxycycline C. Cephalexin D. Vancomycin

Last Answer : C. Cephalexin

Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ribosome does not move along the mRNA and the peptide chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin

Description : Select the antibiotic which inhibits bacterial protein synthesis by interfering with translocation of elongating peptide chain from acceptor site back to the peptidyl site of the ribosome so that ... chain is prematurely terminated: A. Chloramphenicol B. Erythromycin C. Tetracycline D. Streptomycin

Last Answer : B. Erythromycin

Select the fourth generation cephalosporin among the following (a) Cefpirome (b) Ceftizoxime (c) Ceftazidime (d) Cefuroxime

Description : Select the fourth generation cephalosporin among the following (a) Cefpirome (b) Ceftizoxime (c) Ceftazidime (d) Cefuroxime

Last Answer : Ans: A

A single oral dose of the following antibiotic is curative in most patients of nonspecific urethritis due to Chlamydia trachomatis: A. Doxycycline B. Azithromycin C. Erythromycin D. Cotrimoxazole

Description : A single oral dose of the following antibiotic is curative in most patients of nonspecific urethritis due to Chlamydia trachomatis: A. Doxycycline B. Azithromycin C. Erythromycin D. Cotrimoxazole

Last Answer : B. Azithromycin

Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis? (a) Tetracycline (b) Erythromycin (c) Neomycin (d) Streptomycin

Description : Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis? (a) Tetracycline (b) Erythromycin (c) Neomycin (d) Streptomycin

Last Answer : (d) Streptomycin

.Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis? (a) Tetracycline (b) Erythromycin (c) Neomycin (d) Streptomycin

Description : .Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis? (a) Tetracycline (b) Erythromycin (c) Neomycin (d) Streptomycin

Last Answer : (c) Neomycin

Which one of the following pairs is incorrectly matched as to antibiotic and use? a. Penicillin-gram-positive bacteria b. Nystatin-fungi c. Tetracycline-viruses d. Griseofulvin-fungi

Description : Which one of the following pairs is incorrectly matched as to antibiotic and use? a. Penicillin-gram-positive bacteria b. Nystatin-fungi c. Tetracycline-viruses d. Griseofulvin-fungi

Last Answer : c. Tetracycline-viruses

Which of the following is not an antibiotic? (A) Penicillin (B) Streptomycin (C) Tetracycline (D) Quinine

Description : Which of the following is not an antibiotic? (A) Penicillin (B) Streptomycin (C) Tetracycline (D) Quinine

Last Answer : (D) Quinine