Frage 1
Frage
Which of the following is a correct description of Ludwig's Angina?
Antworten
-
Caused by anaerobe infection
-
It occurs in children with concomitant dental infections
-
It is not life-threatneing
-
Caused by infection from bacteroids, staphylococci, and streptococci
Frage 2
Frage
Choose all the following that are mechanisms of select toxicity?
Antworten
-
Inhibition of cell wall synthesis
-
Selective Inhibition
-
Suppression of DNA synthesis
-
Common targets
-
Unique drug targets
-
Alteration of cell membrane permeability
Frage 3
Frage
Which of the following is the correct definition of Anti-infective agents?
Antworten
-
Natural or synthetic substances used to suppress growth or kill bacteria/ single cell organisms
-
Substances that act against or destroy infections (Fungal/Viral/Bacteria)
-
Substances that destroy or supress the growth or multiplcation of bacteria
-
Substances produced by bacteria that can destroy or suppress the growth or multiplication of bacteria or prevent the action of bacteria
Frage 4
Frage
What antibacterial is given for emergency treatment of Ludwig's Angina?
Antworten
-
Penicillin V
-
Ampicillin
-
Penicillin G
-
Augmentin
Frage 5
Frage
Which of the following is the correct mechanism for how Polymyxins act as antibiotics?
Antworten
-
Binds to ribosome 30s to prohibit protein synthesis
-
Disrupts the integrity of the baceterial cell wall by displacing calcium and magnesium
-
Inhibits the cross-linkages between the peptidoglycan polymer strands
-
Disrupts the integrity of the cell membrane by displacing calcium and magnesium
Frage 6
Frage
Antibiotics that bind to bacterial ribosomes inhibit what enzyme?
Antworten
-
Transpeptidase
-
Peptidyl transferase
-
Beta lactamase
-
Transcriptase
Frage 7
Frage
How do sulfonamides prevent the further growth of bacteria?
Antworten
-
They block conversion of PABA into dihydrofolic acid
-
They inhibit DNA gyrase and Topoismerase enzymes, preventing supercoiling
-
They inhibit peptidyl transferase, inhibiting binding of tRNA to mRNA
-
They bind to the dihydroflate reductase (DHFR) enzyme, thus preventing production of folic acid
Frage 8
Frage
Acquired resistance is when the bacteria has always been resistant due to inherent properties of the bacteria
Frage 9
Frage
Which bacteria are susceptible to enzyme inactivation by beta lactamases?
Antworten
-
Cephalosporins
-
Macrolides
-
Metronidazole
-
Tetracyclines
Frage 10
Frage
Which of the following is defines as a mobile genetic element which may be transferred from one organism to the other?
Antworten
-
Bacteriophages
-
Integrons
-
Transposons
-
Plasmid
Frage 11
Frage
An integron is a genetic element that captures and disseminates genes through a gene cassette
Frage 12
Frage
Which of the following is NOT an example of microbial resistance?
Antworten
-
Enzymatic inactvation
-
Antibiotic antagonism or interactions
-
Insensitivity to apoptosis
-
Overproduction of target sites
Frage 13
Frage
Which of the following cancers do NOT have a high incidence of p53 mutations
Antworten
-
Ovarian
-
Lung
-
Colon
-
Pancreatic
Frage 14
Frage
Which of the following is correct regarding superinfections?
Antworten
-
More likely to occur with narrow spectrum antibiotics
-
Occurs with transfer of plasmids and transposons
-
They are easy to treat
-
May be opportunistic infections with viruses such as Candidda albicans and Histoplasmosis
Frage 15
Frage
When would chemoprophylaxis be used?
Antworten
-
Used after surgery to prevent wound infections
-
Used after a potential expsoure
-
To prevent an oral infection after having a dental procedure
-
In immunocompromised patients to prevent reactivation of latent reactions
Frage 16
Frage
Penicillins are narrow spectrum drugs
Frage 17
Frage
Select all of the bactericidal antibiotics
Antworten
-
Macrolides
-
Pencillin
-
Metronidazole
-
Tetracycline
-
Cefadroxil
-
Cephalexin
-
Aminoglycosides
-
Ciprofloxacin
-
Clindamycin
Frage 18
Frage
Which of the following is NOT a cause for antibiotic failure?
Antworten
-
Limited vascularity or blood flow to tissue
-
Blood concentration too low
-
Impaired host to immune system
-
Failure to activate the antibiotics
Frage 19
Frage
Which of the following antibacterials can cause a long QT syndrome?
Antworten
-
Fluroquinolones
-
Sulfonamides
-
Penicillins
-
Cephalsporins
Frage 20
Frage
Which of the following antibacterials cause agranulocytosis?
Antworten
-
Fluroquinolones
-
C. diff
-
Macrolides
-
Penicillins
Frage 21
Frage
Which of the following is NOT a concern of antibiotic use?
Frage 22
Frage
Which of the following is incorrect regarding Penicillin G/Penicillin V?
Antworten
-
One of these two can be used for treatment of Ludwig's Angina
-
Used for mixed aerobic-anerobic infections
-
Used for head, neck, and dental infections
-
These are all correct
Frage 23
Frage
Which of the following is the correct use of antistaphylococcal penicillins?
Antworten
-
Skin and soft tissue infections
-
Broad spectrum Enterobacter
-
Klebsiella and enterocci
-
Ear, nose and throat, H. pylori
Frage 24
Frage
Which of the following is not an antistaphylococcal penicillin?
Frage 25
Frage
Augmentin contains an antistaphylococcal penicillin
Frage 26
Frage
Penicillins work by inhibiting which enzyme?
Antworten
-
Integrase
-
Peptidyl transferase
-
Transpeptidase
-
Transcriptase
Frage 27
Frage
Penicillin V is administered IV only?
Frage 28
Frage
Which of the following is NOT a possible adverse effect from peniciilins?
Frage 29
Frage
Which of the following is a known drug reaction with use of penicillin?
Antworten
-
Increase renal tubular secretion with use of probenecid
-
Inactivation with use of aminoglycosides
-
Disulfram-like reaction
-
Inhibits metabolism of anticoagulants, increasing risk of bleeding
Frage 30
Frage
Which of the following is true regarding aminopenicillins?
Antworten
-
Resistant to beta lactamases
-
Narrow spectrum
-
Ampicillin has less side effects than amoxicillin
-
Effective against Neissseria gonorrhea and meningitidis
Frage 31
Frage
Select the following that are ineffective against beta lactamases:
Antworten
-
Penicillin V
-
Penicillin G
-
Cloxacillin
-
Amoxicillin
Frage 32
Frage
Which of the following can be used to overcome resistant bacteria?
Antworten
-
Cloxacillin
-
Amoxacillin
-
Clavulanic acid
-
Ampicillin
Frage 33
Frage
Which of the following is true regarding penicillins and beta-lactamase inhibitors?
Antworten
-
Amoxicillin has a molecular structure similar to beta lactam, thus prevents inactivation by beta lactamase
-
They are ineffective against Salmonella related infections
-
They are used in immunocompromised patients with mixed infections
-
They are effective against Klebsiella bacteria
Frage 34
Frage
Which of the following best represents first generation cephalosporins?
Antworten
-
Includes Cefotaxime and Ceftriaxone
-
Used for UTI and soft tissue abscesses
-
Effective against Klebsiella and H influenza
-
Used for treatment of community-acquired pneumonia
Frage 35
Frage
Which of the following best describes generation 2 cephalosporins
Antworten
-
Drug of choice for surgical prophylaxis
-
Used to treat Meningitis
-
Includes the drug Cefuroxime
-
Includes the drug Cefepime
Frage 36
Frage
Which of the following best describes generation 3 cephalosporins?
Antworten
-
They have resistance to beta lacmases
-
Hightly active against P aeruginosa
-
Not approved for treatment of meningitis
-
Best for any H influenza infection
Frage 37
Frage
Which of the following best describes fourth generation cephalosporins?
Antworten
-
It is used for meningitis
-
It includes the drug ceftaroline
-
It is active against Neisseria
-
Can be used for MRSA
Frage 38
Frage
Ceftaroline is active against MDR staph aureus, MRSA, and VRSA
Frage 39
Frage
Protein synthesis inhibitors are considered narrow spectrum antibiotics
Frage 40
Frage
Tetracyclines are broad spectrum antibiotics
Frage 41
Frage
Which of the following best matches the mechanism of tetracyclines?
Antworten
-
Inhibition of beta 1-3 glycan of bacterial cell wall, preventing cross-linkages
-
Becomes mechanically reduced to a toxic metabolite, interacting with DNA
-
Binds to 50s subunit, preventing binding of tRNA to mRNA
-
Binds to 30s subunit, preventing binding of tRNA to mRNA
Frage 42
Frage
Which of the following are targeted by tetracyclines
Frage 43
Frage
Which of the following is NOT a concern of tetracyclines?
Frage 44
Frage
Which of the following is incorrect regarding macrolides?
Antworten
-
Broad spectrum
-
Kills Treponema pallidum
-
Used as an alternative for patients allergic penicillins
-
Can be bacteriostatic or bacteriocidal, depending on dose
Frage 45
Frage
What makes Telithromycin so special?
Antworten
-
It can be used for MRSA
-
It can cause Fanconi's syndrome if taken when it is expired
-
It can bind to ribosome 23s, which makes it unique
-
Can be used in cases when other macrolides cause fulminant hepatic necrosis
Frage 46
Frage
Which of the following is incorrect regarding Chloramphenicol?
Frage 47
Frage
Chloramphenicol can cause gray baby syndrome
Frage 48
Frage
Which of the following is NOT a use for Clindamycin?
Frage 49
Frage
Which of the following is NOT a concern for use of Clindamycin?
Frage 50
Frage
Which of the following is NOT a risk factor for pseudomembranous colitis?
Antworten
-
Elderly
-
Sulfonamides
-
Ampicillin
-
Erhythromycin
Frage 51
Frage
Choose all of the following that are part of treatment of pseudomembranous colitis?
Antworten
-
Start on Vancomycin IV
-
Hydration
-
Start on clotrimazole
-
Start of Metronidazole
-
Stop all antibiotics
-
Start on Vancomycin oral
Frage 52
Frage
What is the clinical use of sulfonamides?
Frage 53
Frage
Sulfonamide is a structural analog of DFHR
Frage 54
Frage
Which of the following causes Steven-Johnson syndrome?
Antworten
-
Sulfonamides
-
Penicillins
-
Macrolides
-
Tetracyclines
Frage 55
Frage
Sulfonamides can cause which of the following adverse effects?
Frage 56
Frage
Which of the following is NOT another name for trimethoprim?
Antworten
-
Co-trimoxazole
-
Bactrim
-
Clotrimazole
-
Septra
Frage 57
Frage
Which best describes the mechanism of trimethoprim?
Frage 58
Frage
Which of the following antibiotics are best known to be used for acne?
Antworten
-
Tetracyclines
-
Sulfonamides
-
Macrolides
-
Penicillins
Frage 59
Frage
Clotrimazole can be used for UTI?
Frage 60
Frage
Metronidazole is used for the treatment of amoebic liver abscesss
Frage 61
Frage
How do fluoroquinolones kill bacteria?
Antworten
-
They are chemically reduced to a toxic metabolite which interacts with DNA, resulting in loss of helical structure and essentially cell death
-
They bind to bacterial ribosomes 30s
-
They inhibit transpeptidases
-
They compromise the integrity of the bacterial cell membrane
Frage 62
Frage
Which of the following do metronidazoles NOT attack?
Antworten
-
Gram positive
-
Anaerobes
-
Gram negative
-
Aerobes
Frage 63
Frage
Which of the following is not a drug interaction of metronidazole?
Frage 64
Frage
Sharp metallic taste is one of many adverse effects of sulfonamides
Frage 65
Frage
Which best describes the mechanism of action of fluroquinolones?
Antworten
-
Binding to bacterial ribosome 50s
-
Inhibits DNA gyrase, preventing supercoiling and stopping DNA replication
-
Inhibits transcriptase, preventing supercoiling and stopping DNA replication
-
Chemically reduced to a toxic metabolite, interacting with DNA and essentially causing cell death
Frage 66
Frage
The causes of resistance in fluoroquinolones are alteration in DNA gyrase and decreased permeability
Frage 67
Frage
Which of the following bacteria could cause cartilage damage in children?
Antworten
-
Ciprofloxacin
-
Clindamycin
-
Cefepime
-
Aminoglycosides
Frage 68
Frage
Ciprofloxacin is an extended spectrum drug
Frage 69
Frage
Which of the following is true about vancomycin?
Antworten
-
Given by quick infusion for serious systemic infections
-
May be used where resistance to macrolides has developed in bacterial strains
-
Inhibits transpeptidase
-
It is not absorbed by the GI
Frage 70
Frage
Which of the following can cause Red Man Syndrome?
Antworten
-
Penicillin
-
Erythromycin
-
Vancomycin
-
Sulfamethoxazole
Frage 71
Frage
Which of the following is NOT true regarding aminoglycosides?
Antworten
-
Can be used for the treatment of sepsis
-
Same spectrum as fluroquinolones
-
Given only PO
-
Drug monitoring is required
Frage 72
Frage
Which of the following is NOT side effect of drugs such as gentamicin, tobramycin, and amikacin?
Antworten
-
Reversible renal toxicity
-
Irreversible vestibular toxicity
-
Neuromuscular blockade
-
Adding furoseminde can decrease risk of renal damage
Frage 73
Frage
Which of the following would you want to avoid giving prior to a surgical procedure?
Antworten
-
Cephalexin
-
Clindamycin
-
Tobramycin
Frage 74
Frage
You would want to give Vancomycin PO q12h for MRSA
Frage 75
Frage
VRE infects immunocompromised patients
Frage 76
Frage
Which of the following cannot be used for treatment of MRSA?
Antworten
-
Linezolid
-
Ceftaroline
-
Streptogramins
-
Vancomycin
Frage 77
Frage
MRSA is resistant to ALL penicillins and cephalosporins
Frage 78
Frage
What are mechanisms of genetic transfer that are related to superinfections?
Antworten
-
Bacteriophages
-
Integrons
-
Transposon
-
Plasmid
Frage 79
Frage
Which of the following best describes amphotericin B?
Antworten
-
Used only as topical therapy
-
Dose adjustment required and dose limited to 6 months
-
A polyene antifungal that binds to ergosterol in fungal cell membranes
-
Binds to bacterial RNA polymerase enzyme and inhibits RNA synthesis
Frage 80
Frage
Amphotericin B is used to only treat progressive and potentially fatal systemic infections due to its severe adverse effects
Frage 81
Frage
Which of the following is NOT an adverse effect of Amphotericin B?
Frage 82
Frage
Which of the following does NOT increase risk of nephrotoxicity
Antworten
-
Aminoglycosides
-
Amphoterecin B
-
Cisplatin
-
Macrolides
Frage 83
Frage
Nystatin is not related to Amphoterecin B and can therefore be used systemically
Frage 84
Frage
What type of fungal infection does nystatin treat?
Antworten
-
Cryptococcal meningitis
-
Candida infections
-
Histoplasmosis
-
Asperillosis
Frage 85
Frage
What do you want to avoid taking with azole antifungals?
Antworten
-
Antacids
-
Echinocandins
-
Calcium
-
Milk
Frage 86
Frage
Fluconazole is a prodrug
Frage 87
Frage
Choose all of the traizoles
Antworten
-
Ketoconazole
-
Itraconazole
-
Fluconazole
-
Voriconazole
-
Miconazole
-
Clotrimazole
Frage 88
Frage
Which is the correct mechanism of azoles?
Antworten
-
Disrupts microtubule function and inhibits dermatophyte growth
-
Binds to membrane Ergosterol
-
Inhibits viral DNA polymerase
-
Inhibits the lanosterol 14 alpha enzyme, preventing the conversion of lanosterol to ergosterol and disrupts the struction of fungal membrane
Frage 89
Frage
Which of the following is NOT an adverse effect of Azoles?
Frage 90
Frage
Which of the following are used in hematopoietic stem cell transplatation patients?
Antworten
-
Fluconazole
-
Itraconazole
-
Echinocandins
-
Isoniazid
Frage 91
Frage
Which of the following antifungals are used to disrupt microtubule function?
Antworten
-
Terbinafine
-
Griseofulvin
-
Echinocandins
-
Ketoconazole
Frage 92
Frage
Which of the following antifungals is used for onychomychosis and tinea?
Antworten
-
Griseofulvin
-
Terbinafine
-
Echinocandins
-
Ketoconazole
Frage 93
Frage
What is the difference between NRTIs and NNRTIs?
Antworten
-
NRTIs inhibit viral DNA relication by binding to reverse transcriptase and inhibit DNA polymerase and NNRTIs act as chain terminators and imtate nucleotides
-
NNRTIs inhibit viral DNA relication by binding to reverse transcriptase and inhibit DNA polymerase and NRTIs act as chain terminators and imtate nucleotides
-
NRTIs interact with ohter drugs metabolized by CYP450 enzyme
-
NRTIs cause Stevens Johnson syndrome
Frage 94
Frage
NRTIs have mitochondrial toxicity
Frage 95
Frage
Which of the following is an adverse effect of NRTIs?
Frage 96
Frage
NRTIs cause Steven Johnson syndrome
Frage 97
Frage
Which of the following is not a protease inhibitor?
Antworten
-
Saquinavir
-
Retrovir
-
Ritonavir
-
Indinavir
Frage 98
Frage
Which of the following is the correct drug regimen for post-exposure prophylaxis?
Frage 99
Frage
How do enfuvirtides work?
Frage 100
Frage
Which of the following is an integrase inhibitor?
Antworten
-
Retrovir
-
Raltegravir
-
Indinavir
-
Lopinavir
Frage 101
Frage
TNX-355 is used to prevent virus maturation
Frage 102
Frage
When should Antiretroviral therapy be started?
Antworten
-
When CD4 count is less than 200
-
In HIV patient who is pregnant
-
With Hepatits B virus coinfection
-
These are all reasons to start therapy
Frage 103
Frage
Efavirenz is the recommended drug for HIV therapy in pregnant women
Frage 104
Frage
Choose the drugs that are part of HAART?
Antworten
-
2NRTIs
-
NNRTIs
-
Ritonavir
-
Integrase
-
Enfuvirtide
-
Befirimat
-
TNX-355
-
Acyclovir
-
Famciclovir
Frage 105
Frage
Which antiviral drug prevents formation of DNA chain by inhibiting viral DNA synthesis?
Antworten
-
Acyclovir
-
Ganciclovir
-
Raltegravir
-
Retrovir
Frage 106
Frage
Ganciclovir causes myelosuppression
Frage 107
Frage
Which of the following is used for prophylaxis of TB
Antworten
-
Rifampin
-
Isoniazid
-
Streptomycin
-
Ethambutol
Frage 108
Frage
Which of the following is true about isoniazid?
Antworten
-
It is not readily absorbed by the GIT
-
It is metabolized by CYP450 enzyme, therefore having many drug interactions
-
Inhibits synthesis of Mycolic acid
-
Structurally distinct from pyridoxine, therefore causing peripheral neuropathy
Frage 109
Frage
Choose which of the following drugs are administered with isoniazid for treatment?
Antworten
-
Rifampin
-
Ethambutol
-
Retrovir
-
Acyclovir
Frage 110
Frage
Rifampin is a "true" antibiotic
Frage 111
Frage
Which of the following is NOT true regarding Rifampin?
Antworten
-
Gives a harmless orange color to all bodilly secretions
-
Can cause cholestatic jaundice
-
Used for prophylaxis
-
Binds to bacterial RNA polymerase enzyme and inhibits RNA synthesis
Frage 112
Frage
Mr. Smith works as an airline pilot and was found to have TB. Which drug would you NOT want to give him, due to its effects on visual acuity and color discrimination?
Antworten
-
Isoniazid
-
Rifampin
-
Ethambutol
-
Streptomycin
Frage 113
Frage
Which of the following drugs is given for prophylaxis and cure of malaria?
Antworten
-
Fluoroquinolones
-
Quinolones
-
Albendazole
-
Chloroquine
Frage 114
Frage
Which of the following are concerns with the use of Antimalarials?
Frage 115
Frage
Which of the following is NOT a concern of antimalrials with long term drug dosing?
Antworten
-
Retinopathy
-
Ototoxicity
-
Irreversible neuropathy
-
Nephrotoxicity
Frage 116
Frage
Epstein-Barr virus can cause nasopharyngeal cancer
Frage 117
Frage
Which of the following cause Hodgkins/Non-Hodgkins?
Antworten
-
Hepatitis B
-
HIV
-
HPV
-
Epstein-Barr virus
Frage 118
Frage
Which of the following is part of treatment for advanced disease?
Frage 119
Frage
Which of the following NOT consistent with primary resistance in regards to cancer drugs?
Antworten
-
No response with drug therapy
-
Blamed on loss of p53 tumor suppressor gene
-
Common in malignant melanoma
-
Increased expression of MDR1 gene
Frage 120
Frage
How do alkylating agents cause cell death in cancer drugs?
Antworten
-
They transfer their alkyl groups to DNA within the nucleus
-
They can inhibit protein chains and DNA strand breakage by carbamoylation
-
React chemically with sulfydryl, amino,hydroxyl and phosphate groups
-
All of the above
Frage 121
Frage
Which of the following causes hemorrhagic cystitis?
Antworten
-
Cyclophosphamide
-
Cisplatin
-
Vincristine
-
Mitomycin
Frage 122
Frage
Which of the following causes myelosuppression?
Antworten
-
Methotrexate
-
Vinblastine
-
Mitomycin
-
All of the above
Frage 123
Frage
Which of the following cause mucositis?
Antworten
-
Chlorambucil
-
Vinorelbine
-
5-flurouracil
-
None of the above
Frage 124
Frage
Which of the following cause neutropenia?
Antworten
-
Methotrexate
-
5-flurouracil
-
Mitomycin
-
Cisplatin
Frage 125
Frage
Which of the following causes SIADH?
Antworten
-
Methotrexate
-
Vinblastine
-
Cyclophospamide
-
None of the above
Frage 126
Frage
Methotrexate has a similar mechanism to what other drug?
Antworten
-
Sulfonamides
-
Trimethoprim
-
Fluoroquinolones
-
Penicillins
Frage 127
Frage
Which of the following drugs does NOT inhibit renal excretion of methotrexate?
Frage 128
Frage
Imatinib prevents phosphorylation of the cell kinase substrates by ATP
Frage 129
Frage
Cetuximab works against which enzyme to suppress cancer growth?
Antworten
-
EGFR
-
Transcriptase
-
Transpeptidase
-
DNA polymerase
Frage 130
Frage
Retinoic acid is used to treat childhood ALL