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

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
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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. Gentamicin

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. Gentamicin

Last Answer : Tetracycline

A child presented with polyuria, weakness and fever. On the basis of investigations he was labelled to be suffering from Fancony syndrome. A history of taking some old left over antibiotic capsules was obtained. What could have been the antibiotic: A. Tetracycline B. Chloramphenicol C. Ampicillin D. Cephalexi

Description : A child presented with polyuria, weakness and fever. On the basis of investigations he was labelled to be suffering from Fancony syndrome. A history of taking some old left over antibiotic ... What could have been the antibiotic: A. Tetracycline B. Chloramphenicol C. Ampicillin D. Cephalexi

Last Answer : A. Tetracycline

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

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 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

The following antibiotic penetrates blood-CSF barrier the best: A. Erythromycin B. Gentamicin C. Tetracycline D. Chloramphenicol

Description : The following antibiotic penetrates blood-CSF barrier the best: A. Erythromycin B. Gentamicin C. Tetracycline D. Chloramphenicol

Last Answer : D. Chloramphenicol

2 Which antibiotic is primarily bacteriostatic but becomes bactericidal at higher concentrations: A. Erythromycin B. Tetracycline C. Chloramphenicol D. Ampicillin

Description : 2 Which antibiotic is primarily bacteriostatic but becomes bactericidal at higher concentrations: A. Erythromycin B. Tetracycline C. Chloramphenicol D. Ampicillin

Last Answer : A. Erythromycin Although erythromycin is primarily bacteriostatic, it is bactericidal at high concentrations for some Gram-positive species, such as group A streptococci and pneumococci

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

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

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

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

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

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

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

Last Answer : Ans: C

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

A premature neonate suffered respiratory distress and was given an antibiotic 100 mg/kg/day orally. Over the next two days his condition worsened, he become dull, stopped feeding, developed abdominal distention and an ashen gray appearance. Which is the most likely antibiotic given to him: A. Ampicillin B. Chloramphenicol C. Erythromycin D. Ciprofloxacin

Description : A premature neonate suffered respiratory distress and was given an antibiotic 100 mg/kg/day orally. Over the next two days his condition worsened, he become dull, stopped feeding, developed ... most likely antibiotic given to him: A. Ampicillin B. Chloramphenicol C. Erythromycin D. Ciprofloxacin

Last Answer : B. Chloramphenico

Two drugs that affect cell wall synthesis are a. Erythromycin and penicillin. b. Vancomycin and cephalosporin. c. Tetracycline and polymyxin b. d. Chloramphenicol and streptomycin.

Description : Two drugs that affect cell wall synthesis are a. Erythromycin and penicillin. b. Vancomycin and cephalosporin. c. Tetracycline and polymyxin b. d. Chloramphenicol and streptomycin.

Last Answer : a. Erythromycin and penicillin.

Gary baby syndrome occur in new born with a) Tetracycline b) Chloramphenicol c) Penicillin d) Erythromycin

Description : Gary baby syndrome occur in new born with a) Tetracycline b) Chloramphenicol c) Penicillin d) Erythromycin

Last Answer : b) Chloramphenicol 

A woman has an upper respiratory infection. Six years ago, she experienced an episode of bronchospasm follwing penicillin V therapy. The cultures now reveal a strain of streptococcus pneumoniae that is sensitive to all of the following drugs. Which of these drugs would be the best choice for this patient? (a) Amoxicillin/clavulanate (b) Erythromycin (c) Ampicillin (d) cefaclor (e) Cyclacillin

Description : A woman has an upper respiratory infection. Six years ago, she experienced an episode of bronchospasm follwing penicillin V therapy. The cultures now reveal a strain of streptococcus pneumoniae that is ... ? (a) Amoxicillin/clavulanate (b) Erythromycin (c) Ampicillin (d) cefaclor (e) Cyclacillin

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 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 : C. Tobramycin

The following antibiotic accentuates the nuromuscular blockade produced by pancuronium: A. Streptomycin B. Erythromycin C. Penicillin G D. Chloramphenicol

Description : The following antibiotic accentuates the nuromuscular blockade produced by pancuronium: A. Streptomycin B. Erythromycin C. Penicillin G D. Chloramphenicol

Last Answer : A. Streptomycin

What is the most important reason for restricted clinical use of chloramphenicol ? (a) Its narrow spectrum of activity (b) Emergence of chloramphenicol resistance (c) Its potential to cause bone marrow depression (d) Its potential to cause superinfections

Description : What is the most important reason for restricted clinical use of chloramphenicol ? (a) Its narrow spectrum of activity (b) Emergence of chloramphenicol resistance (c) Its potential to cause bone marrow depression (d) Its potential to cause superinfections

Last Answer : Ans: C

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 for chloramphenicol acetyl transferase (c) Lowered affinity of the bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis

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

Chloramphenicol is more active than tetracyclines against (a) Bateroides fragilis (b) Treponema pallidum (c) Streptococci (d) Staphylococci

Description : Chloramphenicol is more active than tetracyclines against (a) Bateroides fragilis (b) Treponema pallidum (c) Streptococci (d) Staphylococci

Last Answer : Ans: A

Currently the drug of choice for emperic treatment of typhoid fever is (a) Chloramphenicol (b) Cotrimoxaxole (c) Ciprofloxacin (d) Ampicillin

Description : Currently the drug of choice for emperic treatment of typhoid fever is (a) Chloramphenicol (b) Cotrimoxaxole (c) Ciprofloxacin (d) Ampicillin

Last Answer : Ans: C

Chloramphenicol is particularly effective in the treatment of (a) Diphtheria (b) Tuberculosis (c) Emphysema (d) Rickettsial diseases (e) Streptomyces pyogenes infections

Description : Chloramphenicol is particularly effective in the treatment of (a) Diphtheria (b) Tuberculosis (c) Emphysema (d) Rickettsial diseases (e) Streptomyces pyogenes infections

Last Answer : Ans: D

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 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

The drug of choice for treatment of methicillin resistant Staphylococcus aureus infection is (a) Cloxacillin (b) Vancomycin (c) Erythromycin (d) Amikacin

Description : The drug of choice for treatment of methicillin resistant Staphylococcus aureus infection is (a) Cloxacillin (b) Vancomycin (c) Erythromycin (d) Amikacin

Last Answer : Ans: B

Roxithromycin has the following advantages over erythromycin except (a) It is more effective in whooping cough (b) It causes less gastric irritation (c) It has longer plasma half-life (d) It is unlikely to precipitate theophylline toxicity

Description : Roxithromycin has the following advantages over erythromycin except (a) It is more effective in whooping cough (b) It causes less gastric irritation (c) It has longer plasma half-life (d) It is unlikely to precipitate theophylline toxicity

Last Answer : Ans: A

Hepatitits with cholestatic jaundice occurs most frequently as an adverse reaction to the following preparation of erythromycin (a) Erythromycin base (b) Erythromycin stearate (c) Erythromycin estolate (d) Erythromycin ethylsuccinate

Description : Hepatitits with cholestatic jaundice occurs most frequently as an adverse reaction to the following preparation of erythromycin (a) Erythromycin base (b) Erythromycin stearate (c) Erythromycin estolate (d) Erythromycin ethylsuccinate

Last Answer : Ans: C

Which of the following drugs has demonstrated in vitro activity against Mycobacterium avium-intracellular(MAI)? (a) Vancomycin (b) Clarithromycin (c) Erythromycin base (d) Troleandomycin (e) Erythromycin estolate

Description : Which of the following drugs has demonstrated in vitro activity against Mycobacterium avium-intracellular(MAI)? (a) Vancomycin (b) Clarithromycin (c) Erythromycin base (d) Troleandomycin (e) Erythromycin estolate

Last Answer : Ans: B

A high school student presents with headache, fever, and cough of 2 day’s duration. Sputum is scant and nonpurulent and a Gram stain reveals many white cells but no organisms. Since this patient appears to have atypical pneumonia. You should initiate treatment with (a) Cefazolin (b) Clindamycin (c) Erythromycin (d) Gentamicin (e) Trovafloxacin

Description : A high school student presents with headache, fever, and cough of 2 day's duration. Sputum is scant and nonpurulent and a Gram stain reveals many white cells but no organisms. Since this ... initiate treatment with (a) Cefazolin (b) Clindamycin (c) Erythromycin (d) Gentamicin (e) Trovafloxacin

Last Answer : Ans: C

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

Clarithromycin and erythromycin have very similar spectrums of antimicrobial activity. The major advantage of clarithromytcin is that it (a) Eradicates mycoplasmal infections in a single dose (b) Is active against strains of streptococci that are resistant to erythromycin (c) Is more active against Mycobacterium avium complex (d) Does not inhibit live drug-metabolizing enzymes (e) Acts on methicillin-resistant strains of staphylococci

Description : Clarithromycin and erythromycin have very similar spectrums of antimicrobial activity. The major advantage of clarithromytcin is that it (a) Eradicates mycoplasmal infections in a single dose (b ... not inhibit live drug-metabolizing enzymes (e) Acts on methicillin-resistant strains of staphylococci

Last Answer : Ans: C

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

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 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

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

_____ cause a yellow-gray-brown discoloration of teeth and stunted bones in children, which have limited its use to adults. a. Methicillin b. Vancomycin c. Tetracycline d. Erythromycin

Description : _____ cause a yellow-gray-brown discoloration of teeth and stunted bones in children, which have limited its use to adults. a. Methicillin b. Vancomycin c. Tetracycline d. Erythromycin

Last Answer : c. Tetracycline

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.

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