Antimicrobial Resistance Essentials Quiz

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Test your grasp of antimicrobial agents and resistance.

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Quader Ahmed Jalili

India

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Antimicrobial Resistance Essentials Quiz


Froggy Jumps Antimicrobial Resistance Essentials QuizVersión en línea Test your grasp of antimicrobial agents and resistance. por Quader Ahmed Jalili 1 MRSA resistance is primarily due to which gene? a vanA b ermC c mecA 2 ESBLs confer resistance to which drug class? a Carbapenems b Macrolides c 3rd gen cephalosporins 3 AmpC enzymes are resistant to cephamycins but remain sensitive to? a Penicillin b Carbapenems c Monobactams 4 Carbapenemases like KPC and NDM cause resistance to? a Vancomycin b Carbapenems c Tetracycline 5 What type of resistance involves gene transfer via plasmids? a Mutational resistance b Transferrable resistance c Intrinsic resistance 6 Intrinsic resistance occurs because of? a Innate bacterial traits b Acquired mutations c Horizontal gene transfer 7 Which mechanism reduces drug entry by altering porins? a Efflux pumps b Decreased permeability c Enzymatic inactivation 8 Efflux pumps primarily cause resistance by? a Inactivating drugs b Expelling drugs from the cell c Altering targets 9 β-lactamases deactivate antibiotics by? a Blocking entry b Modifying ribosomes c Hydrolyzing the β-lactam ring 10 Which organism is classically linked to PBP-2a mediated MRSA resistance? a Staphylococcus aureus b Klebsiella c Escherichia coli 11 Vancomycin resistance in enterococci is due to changes in? a Efflux pumps b D-alanine–D-alanine target c Cell wall thickness 12 Which agent can be ineffective against MRSA? a Vancomycin b Ceftriaxone c Linezolid 13 Which is a common mechanism of quinolone resistance? a Overproduction of ribosomes b Increased porin uptake c Mutations in DNA gyrase 14 Which class is typically affected by porin channel changes in Gram-negatives? a Carbapenems b Tetracyclines c Macrolides 15 Which statement about ESBLs is correct? a They never hydrolyze cephalosporins b They are always susceptible to penicillin c They are approachably inhibited by β-lactamase inhibitors sometimes 16 Which drug class is affected by target site modification in MRSA? a β-lactams b Aminoglycosides c Fusidic acid 17 Which organism is a classic for intrinsic resistance to aminoglycosides? a Streptococcus b Anaerobic bacteria c Staphylococcus aureus 18 Which carbapenem is least active against many organisms due to intrinsic resistance? a Meropenem b Ertapenem c Imipenem 19 β-lactamases are commonly encoded on what? a Ribosomes b Chromosomal deserts c Plasmids 20 Efflux pumps in S. aureus contribute resistance to which drugs? a Macrolides b Vancomycin c Linezolid 21 Which mechanism directly reduces intracellular drug accumulation? a Target modification b Porin loss c Efflux pumps 22 β-lactamase inhibitors can restore activity against which? a Some ESBL producers b All anaerobes c All MRSA 23 Which organism commonly exhibits inducible AmpC production? a Streptococcus b Neisseria c Enterobacteriaceae 24 Which drug is often ineffective against Pseudomonas due to resistance mechanisms? a Piperacillin-tazobactam (in certain strains) b Aztreonam c Ceftazidime 25 Which is a mechanism of resistance that reduces drug binding to ribosomes? a Efflux only b Enzymatic inactivation c Target modification 26 Which antibiotic class targets 50S ribosomal subunit ? a β-lactams b Macrolides c Sulfonamides 27 Which is true about intrinsic resistance examples? a MRSA has intrinsic penicillin resistance b Gram negative bacilli to vancomycin is intrinsic c All bacteria have intrinsic resistance to tetracycline 28 Which organism is notable for porin loss affecting entry of antibiotics? a Pseudomonas b Listeria c Streptococcus 29 Which drug is often reserved for carbapenemase-producing organisms? a Cefepime b Colistin c Ampicillin-sulbactam 30 Which mechanism is least likely to be overcome by combining β-lactam with inhibitors? a Carbapenemase activity b ESBL activity c AmpC activity 31 Which statement is true about MRSA treatment options? a Vancomycin remains effective in many cases b Ceftriaxone is best c Penicillin is first line 32 Which class is typically ineffective against VRE without combination therapy? a Daptomycin b Linezolid c Vancomycin 33 Which mechanism can cause bacteria to resist fluoroquinolones? a Ribosomal protection b Increased porin synthesis c Mutations in DNA gyrase 34 Which is a key distinction of mutational resistance? a Plasmid-based multi-gene cassettes b Transduction only c Single or few gene changes 35 Which mechanism involves altering antibiotic target sites? a Enzymatic inactivation only b Target modification c Efflux only 36 Which term describes the natural ability to resist some drug classes? a Intrinsic resistance b Acquired resistance c Mutational resistance 37 Which mechanism is least associated with MRSA? a Porin loss b PBP-2a modification c β-lactamase production 38 Which is a hallmark of antibiotic resistance spread in hospitals? a Antibiotic de-escalation b Vaccination c Plasmid-mediated transfer 39 Which organism commonly demonstrates carbapenem resistance via enzymes? a Klebsiella pneumoniae b Bacillus subtilis c Streptococcus pyogenes 40 Which is true about AmpC producers? a Resistant to cephamycins and ESBLs b Sensitive to all β-lactams c Insensitive to carbapenems 41 What is the primary purpose of β-lactamase inhibitors? a Kill bacteria directly b Restore activity of β-lactams c Terminate ribosomes 42 Which description matches acquired resistance? a No change in susceptibility b Gained resistance via genes c Innate resistance 43 Which antibiotic is often ineffective against ESBL producers? a Piperacillin-tazobactam b Ceftazidime c Carbapenems 44 Which organism is associated with vancomycin resistance? a Enterococcus b Escherichia coli c Staphylococcus aureus 45 Which mechanism reduces drug entry by altering porins? a Decreased permeability b Efflux pumps c Enzymatic inactivation 46 Which antimicrobial action is blocked by β-lactamases? a Protein synthesis inhibition b Cell wall synthesis inhibition c DNA replication inhibition 47 Which is a typical consequence of selective antibiotic pressure? a Immediate resistance loss b Universal susceptibility c Proliferation of resistant strains 48 Which organism is best known for porin-based resistance to imipenem? a Streptococcus b Listeria c Pseudomonas 49 Which mechanism results from mutations in RNA polymerase? a Rifampicin resistance b Beta-lactamase production c Quinolone resistance 50 Which class is least associated with efflux-mediated resistance? a Macrolides b Glycopeptides c Tetracyclines 51 Which feature distinguishes acquired from intrinsic resistance? a Both always require plasmids b Intrinsic uses new genes c Acquired resistance involves new genes 52 Which antibiotic is often ineffective for Pseudomonas infections due to resistance? a Ertapenem b Meropenem c Doripenem 53 Which antibiotic is a 50S ribosomal inhibitor? a Ciprofloxacin b Clindamycin c Cephalexin 54 Which mechanism helps bacteria survive antibiotic exposure by lowering intracellular drug? a Porin upregulation b Target overproduction c Efflux pumps 55 Which factor does NOT favor resistance spread? a Strict antibiotic stewardship alone b Overuse of antibiotics c Poor infection control 56 Which mechanism can lead to resistance to tetracyclines? a Efflux pumps b Ribosomal modification c Increased drug uptake 57 Which drug class is impacted by mutations in the ribosomal RNA? a Fluoroquinolones b Trimethoprim c Aminoglycosides 58 Which is a common cause of antimicrobial resistance in hospitals? a Excess infection control b Overuse and misuse of antibiotics c Low antibiotic prescribing 59 Which process is plasmid-mediated spread of resistance genes? a Transcription b Conjugation c Replication 60 Which class is often reserved for carbapenemase producers? a Polymyxins b Macrolides c Quinolones 61 Which drug class is affected by target site modification in mycobacteria? a Sulfonamides b Beta-lactams c Rifamycins 62 Which mechanism can cause resistance to linezolid? a Efflux pumps b Ribosomal modification c Enzymatic inactivation 63 Which is NOT a primary beta-lactamase type? a Ribitolase b AmpC c ESBL 64 Which statement best describes the role of infection control? a Has no effect b Increases resistance c Reduces spread of resistance 65 Which antibiotic is most likely ineffective against ESBL producers? a Ampicillin b Piperacillin-tazobactam c Carbapenems

Antimicrobial Resistance Essentials Quiz

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Antimicrobial Resistance Essentials QuizVersión en línea

por Quader Ahmed Jalili

MRSA resistance is primarily due to which gene?

ESBLs confer resistance to which drug class?

AmpC enzymes are resistant to cephamycins but remain sensitive to?

Carbapenemases like KPC and NDM cause resistance to?

What type of resistance involves gene transfer via plasmids?

Intrinsic resistance occurs because of?

Which mechanism reduces drug entry by altering porins?

Efflux pumps primarily cause resistance by?

β-lactamases deactivate antibiotics by?

Which organism is classically linked to PBP-2a mediated MRSA resistance?

Vancomycin resistance in enterococci is due to changes in?

Which agent can be ineffective against MRSA?

Which is a common mechanism of quinolone resistance?

Which class is typically affected by porin channel changes in Gram-negatives?

Which statement about ESBLs is correct?

Which drug class is affected by target site modification in MRSA?

Which organism is a classic for intrinsic resistance to aminoglycosides?

Which carbapenem is least active against many organisms due to intrinsic resistance?

β-lactamases are commonly encoded on what?

Efflux pumps in S. aureus contribute resistance to which drugs?

Which mechanism directly reduces intracellular drug accumulation?

β-lactamase inhibitors can restore activity against which?

Which organism commonly exhibits inducible AmpC production?

Which drug is often ineffective against Pseudomonas due to resistance mechanisms?

Which is a mechanism of resistance that reduces drug binding to ribosomes?

Which antibiotic class targets 50S ribosomal subunit ?

Which is true about intrinsic resistance examples?

Which organism is notable for porin loss affecting entry of antibiotics?

Which drug is often reserved for carbapenemase-producing organisms?

Which mechanism is least likely to be overcome by combining β-lactam with inhibitors?

Which statement is true about MRSA treatment options?

Which class is typically ineffective against VRE without combination therapy?

Which mechanism can cause bacteria to resist fluoroquinolones?

Which is a key distinction of mutational resistance?

Which mechanism involves altering antibiotic target sites?

Which term describes the natural ability to resist some drug classes?

Which mechanism is least associated with MRSA?

Which is a hallmark of antibiotic resistance spread in hospitals?

Which organism commonly demonstrates carbapenem resistance via enzymes?

Which is true about AmpC producers?

What is the primary purpose of β-lactamase inhibitors?

Which description matches acquired resistance?

Which antibiotic is often ineffective against ESBL producers?

Which organism is associated with vancomycin resistance?

Which mechanism reduces drug entry by altering porins?

Which antimicrobial action is blocked by β-lactamases?

Which is a typical consequence of selective antibiotic pressure?

Which organism is best known for porin-based resistance to imipenem?

Which mechanism results from mutations in RNA polymerase?

Which class is least associated with efflux-mediated resistance?

Which feature distinguishes acquired from intrinsic resistance?

Which antibiotic is often ineffective for Pseudomonas infections due to resistance?

Which antibiotic is a 50S ribosomal inhibitor?

Which mechanism helps bacteria survive antibiotic exposure by lowering intracellular drug?

Which factor does NOT favor resistance spread?

Which mechanism can lead to resistance to tetracyclines?

Which drug class is impacted by mutations in the ribosomal RNA?

Which is a common cause of antimicrobial resistance in hospitals?

Which process is plasmid-mediated spread of resistance genes?

Which class is often reserved for carbapenemase producers?

Which drug class is affected by target site modification in mycobacteria?