Pregunta 1
Pregunta
Which of the following is a correct description of Ludwig's Angina?
Respuesta
-
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
Pregunta 2
Pregunta
Choose all the following that are mechanisms of select toxicity?
Respuesta
-
Inhibition of cell wall synthesis
-
Selective Inhibition
-
Suppression of DNA synthesis
-
Common targets
-
Unique drug targets
-
Alteration of cell membrane permeability
Pregunta 3
Pregunta
Which of the following is the correct definition of Anti-infective agents?
Respuesta
-
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
Pregunta 4
Pregunta
What antibacterial is given for emergency treatment of Ludwig's Angina?
Respuesta
-
Penicillin V
-
Ampicillin
-
Penicillin G
-
Augmentin
Pregunta 5
Pregunta
Which of the following is the correct mechanism for how Polymyxins act as antibiotics?
Respuesta
-
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
Pregunta 6
Pregunta
Antibiotics that bind to bacterial ribosomes inhibit what enzyme?
Respuesta
-
Transpeptidase
-
Peptidyl transferase
-
Beta lactamase
-
Transcriptase
Pregunta 7
Pregunta
How do sulfonamides prevent the further growth of bacteria?
Respuesta
-
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
Pregunta 8
Pregunta
Acquired resistance is when the bacteria has always been resistant due to inherent properties of the bacteria
Pregunta 9
Pregunta
Which bacteria are susceptible to enzyme inactivation by beta lactamases?
Respuesta
-
Cephalosporins
-
Macrolides
-
Metronidazole
-
Tetracyclines
Pregunta 10
Pregunta
Which of the following is defines as a mobile genetic element which may be transferred from one organism to the other?
Respuesta
-
Bacteriophages
-
Integrons
-
Transposons
-
Plasmid
Pregunta 11
Pregunta
An integron is a genetic element that captures and disseminates genes through a gene cassette
Pregunta 12
Pregunta
Which of the following is NOT an example of microbial resistance?
Respuesta
-
Enzymatic inactvation
-
Antibiotic antagonism or interactions
-
Insensitivity to apoptosis
-
Overproduction of target sites
Pregunta 13
Pregunta
Which of the following cancers do NOT have a high incidence of p53 mutations
Respuesta
-
Ovarian
-
Lung
-
Colon
-
Pancreatic
Pregunta 14
Pregunta
Which of the following is correct regarding superinfections?
Respuesta
-
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
Pregunta 15
Pregunta
When would chemoprophylaxis be used?
Respuesta
-
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
Pregunta 16
Pregunta
Penicillins are narrow spectrum drugs
Pregunta 17
Pregunta
Select all of the bactericidal antibiotics
Respuesta
-
Macrolides
-
Pencillin
-
Metronidazole
-
Tetracycline
-
Cefadroxil
-
Cephalexin
-
Aminoglycosides
-
Ciprofloxacin
-
Clindamycin
Pregunta 18
Pregunta
Which of the following is NOT a cause for antibiotic failure?
Respuesta
-
Limited vascularity or blood flow to tissue
-
Blood concentration too low
-
Impaired host to immune system
-
Failure to activate the antibiotics
Pregunta 19
Pregunta
Which of the following antibacterials can cause a long QT syndrome?
Respuesta
-
Fluroquinolones
-
Sulfonamides
-
Penicillins
-
Cephalsporins
Pregunta 20
Pregunta
Which of the following antibacterials cause agranulocytosis?
Respuesta
-
Fluroquinolones
-
C. diff
-
Macrolides
-
Penicillins
Pregunta 21
Pregunta
Which of the following is NOT a concern of antibiotic use?
Pregunta 22
Pregunta
Which of the following is incorrect regarding Penicillin G/Penicillin V?
Respuesta
-
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
Pregunta 23
Pregunta
Which of the following is the correct use of antistaphylococcal penicillins?
Respuesta
-
Skin and soft tissue infections
-
Broad spectrum Enterobacter
-
Klebsiella and enterocci
-
Ear, nose and throat, H. pylori
Pregunta 24
Pregunta
Which of the following is not an antistaphylococcal penicillin?
Pregunta 25
Pregunta
Augmentin contains an antistaphylococcal penicillin
Pregunta 26
Pregunta
Penicillins work by inhibiting which enzyme?
Respuesta
-
Integrase
-
Peptidyl transferase
-
Transpeptidase
-
Transcriptase
Pregunta 27
Pregunta
Penicillin V is administered IV only?
Pregunta 28
Pregunta
Which of the following is NOT a possible adverse effect from peniciilins?
Pregunta 29
Pregunta
Which of the following is a known drug reaction with use of penicillin?
Respuesta
-
Increase renal tubular secretion with use of probenecid
-
Inactivation with use of aminoglycosides
-
Disulfram-like reaction
-
Inhibits metabolism of anticoagulants, increasing risk of bleeding
Pregunta 30
Pregunta
Which of the following is true regarding aminopenicillins?
Respuesta
-
Resistant to beta lactamases
-
Narrow spectrum
-
Ampicillin has less side effects than amoxicillin
-
Effective against Neissseria gonorrhea and meningitidis
Pregunta 31
Pregunta
Select the following that are ineffective against beta lactamases:
Respuesta
-
Penicillin V
-
Penicillin G
-
Cloxacillin
-
Amoxicillin
Pregunta 32
Pregunta
Which of the following can be used to overcome resistant bacteria?
Respuesta
-
Cloxacillin
-
Amoxacillin
-
Clavulanic acid
-
Ampicillin
Pregunta 33
Pregunta
Which of the following is true regarding penicillins and beta-lactamase inhibitors?
Respuesta
-
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
Pregunta 34
Pregunta
Which of the following best represents first generation cephalosporins?
Respuesta
-
Includes Cefotaxime and Ceftriaxone
-
Used for UTI and soft tissue abscesses
-
Effective against Klebsiella and H influenza
-
Used for treatment of community-acquired pneumonia
Pregunta 35
Pregunta
Which of the following best describes generation 2 cephalosporins
Respuesta
-
Drug of choice for surgical prophylaxis
-
Used to treat Meningitis
-
Includes the drug Cefuroxime
-
Includes the drug Cefepime
Pregunta 36
Pregunta
Which of the following best describes generation 3 cephalosporins?
Respuesta
-
They have resistance to beta lacmases
-
Hightly active against P aeruginosa
-
Not approved for treatment of meningitis
-
Best for any H influenza infection
Pregunta 37
Pregunta
Which of the following best describes fourth generation cephalosporins?
Respuesta
-
It is used for meningitis
-
It includes the drug ceftaroline
-
It is active against Neisseria
-
Can be used for MRSA
Pregunta 38
Pregunta
Ceftaroline is active against MDR staph aureus, MRSA, and VRSA
Pregunta 39
Pregunta
Protein synthesis inhibitors are considered narrow spectrum antibiotics
Pregunta 40
Pregunta
Tetracyclines are broad spectrum antibiotics
Pregunta 41
Pregunta
Which of the following best matches the mechanism of tetracyclines?
Respuesta
-
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
Pregunta 42
Pregunta
Which of the following are targeted by tetracyclines
Pregunta 43
Pregunta
Which of the following is NOT a concern of tetracyclines?
Pregunta 44
Pregunta
Which of the following is incorrect regarding macrolides?
Respuesta
-
Broad spectrum
-
Kills Treponema pallidum
-
Used as an alternative for patients allergic penicillins
-
Can be bacteriostatic or bacteriocidal, depending on dose
Pregunta 45
Pregunta
What makes Telithromycin so special?
Respuesta
-
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
Pregunta 46
Pregunta
Which of the following is incorrect regarding Chloramphenicol?
Pregunta 47
Pregunta
Chloramphenicol can cause gray baby syndrome
Pregunta 48
Pregunta
Which of the following is NOT a use for Clindamycin?
Pregunta 49
Pregunta
Which of the following is NOT a concern for use of Clindamycin?
Pregunta 50
Pregunta
Which of the following is NOT a risk factor for pseudomembranous colitis?
Respuesta
-
Elderly
-
Sulfonamides
-
Ampicillin
-
Erhythromycin
Pregunta 51
Pregunta
Choose all of the following that are part of treatment of pseudomembranous colitis?
Respuesta
-
Start on Vancomycin IV
-
Hydration
-
Start on clotrimazole
-
Start of Metronidazole
-
Stop all antibiotics
-
Start on Vancomycin oral
Pregunta 52
Pregunta
What is the clinical use of sulfonamides?
Pregunta 53
Pregunta
Sulfonamide is a structural analog of DFHR
Pregunta 54
Pregunta
Which of the following causes Steven-Johnson syndrome?
Respuesta
-
Sulfonamides
-
Penicillins
-
Macrolides
-
Tetracyclines
Pregunta 55
Pregunta
Sulfonamides can cause which of the following adverse effects?
Pregunta 56
Pregunta
Which of the following is NOT another name for trimethoprim?
Respuesta
-
Co-trimoxazole
-
Bactrim
-
Clotrimazole
-
Septra
Pregunta 57
Pregunta
Which best describes the mechanism of trimethoprim?
Pregunta 58
Pregunta
Which of the following antibiotics are best known to be used for acne?
Respuesta
-
Tetracyclines
-
Sulfonamides
-
Macrolides
-
Penicillins
Pregunta 59
Pregunta
Clotrimazole can be used for UTI?
Pregunta 60
Pregunta
Metronidazole is used for the treatment of amoebic liver abscesss
Pregunta 61
Pregunta
How do fluoroquinolones kill bacteria?
Respuesta
-
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
Pregunta 62
Pregunta
Which of the following do metronidazoles NOT attack?
Respuesta
-
Gram positive
-
Anaerobes
-
Gram negative
-
Aerobes
Pregunta 63
Pregunta
Which of the following is not a drug interaction of metronidazole?
Pregunta 64
Pregunta
Sharp metallic taste is one of many adverse effects of sulfonamides
Pregunta 65
Pregunta
Which best describes the mechanism of action of fluroquinolones?
Respuesta
-
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
Pregunta 66
Pregunta
The causes of resistance in fluoroquinolones are alteration in DNA gyrase and decreased permeability
Pregunta 67
Pregunta
Which of the following bacteria could cause cartilage damage in children?
Respuesta
-
Ciprofloxacin
-
Clindamycin
-
Cefepime
-
Aminoglycosides
Pregunta 68
Pregunta
Ciprofloxacin is an extended spectrum drug
Pregunta 69
Pregunta
Which of the following is true about vancomycin?
Respuesta
-
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
Pregunta 70
Pregunta
Which of the following can cause Red Man Syndrome?
Respuesta
-
Penicillin
-
Erythromycin
-
Vancomycin
-
Sulfamethoxazole
Pregunta 71
Pregunta
Which of the following is NOT true regarding aminoglycosides?
Respuesta
-
Can be used for the treatment of sepsis
-
Same spectrum as fluroquinolones
-
Given only PO
-
Drug monitoring is required
Pregunta 72
Pregunta
Which of the following is NOT side effect of drugs such as gentamicin, tobramycin, and amikacin?
Respuesta
-
Reversible renal toxicity
-
Irreversible vestibular toxicity
-
Neuromuscular blockade
-
Adding furoseminde can decrease risk of renal damage
Pregunta 73
Pregunta
Which of the following would you want to avoid giving prior to a surgical procedure?
Respuesta
-
Cephalexin
-
Clindamycin
-
Tobramycin
Pregunta 74
Pregunta
You would want to give Vancomycin PO q12h for MRSA
Pregunta 75
Pregunta
VRE infects immunocompromised patients
Pregunta 76
Pregunta
Which of the following cannot be used for treatment of MRSA?
Respuesta
-
Linezolid
-
Ceftaroline
-
Streptogramins
-
Vancomycin
Pregunta 77
Pregunta
MRSA is resistant to ALL penicillins and cephalosporins
Pregunta 78
Pregunta
What are mechanisms of genetic transfer that are related to superinfections?
Respuesta
-
Bacteriophages
-
Integrons
-
Transposon
-
Plasmid
Pregunta 79
Pregunta
Which of the following best describes amphotericin B?
Respuesta
-
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
Pregunta 80
Pregunta
Amphotericin B is used to only treat progressive and potentially fatal systemic infections due to its severe adverse effects
Pregunta 81
Pregunta
Which of the following is NOT an adverse effect of Amphotericin B?
Pregunta 82
Pregunta
Which of the following does NOT increase risk of nephrotoxicity
Respuesta
-
Aminoglycosides
-
Amphoterecin B
-
Cisplatin
-
Macrolides
Pregunta 83
Pregunta
Nystatin is not related to Amphoterecin B and can therefore be used systemically
Pregunta 84
Pregunta
What type of fungal infection does nystatin treat?
Respuesta
-
Cryptococcal meningitis
-
Candida infections
-
Histoplasmosis
-
Asperillosis
Pregunta 85
Pregunta
What do you want to avoid taking with azole antifungals?
Respuesta
-
Antacids
-
Echinocandins
-
Calcium
-
Milk
Pregunta 86
Pregunta
Fluconazole is a prodrug
Pregunta 87
Pregunta
Choose all of the traizoles
Respuesta
-
Ketoconazole
-
Itraconazole
-
Fluconazole
-
Voriconazole
-
Miconazole
-
Clotrimazole
Pregunta 88
Pregunta
Which is the correct mechanism of azoles?
Respuesta
-
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
Pregunta 89
Pregunta
Which of the following is NOT an adverse effect of Azoles?
Pregunta 90
Pregunta
Which of the following are used in hematopoietic stem cell transplatation patients?
Respuesta
-
Fluconazole
-
Itraconazole
-
Echinocandins
-
Isoniazid
Pregunta 91
Pregunta
Which of the following antifungals are used to disrupt microtubule function?
Respuesta
-
Terbinafine
-
Griseofulvin
-
Echinocandins
-
Ketoconazole
Pregunta 92
Pregunta
Which of the following antifungals is used for onychomychosis and tinea?
Respuesta
-
Griseofulvin
-
Terbinafine
-
Echinocandins
-
Ketoconazole
Pregunta 93
Pregunta
What is the difference between NRTIs and NNRTIs?
Respuesta
-
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
Pregunta 94
Pregunta
NRTIs have mitochondrial toxicity
Pregunta 95
Pregunta
Which of the following is an adverse effect of NRTIs?
Pregunta 96
Pregunta
NRTIs cause Steven Johnson syndrome
Pregunta 97
Pregunta
Which of the following is not a protease inhibitor?
Respuesta
-
Saquinavir
-
Retrovir
-
Ritonavir
-
Indinavir
Pregunta 98
Pregunta
Which of the following is the correct drug regimen for post-exposure prophylaxis?
Pregunta 99
Pregunta
How do enfuvirtides work?
Pregunta 100
Pregunta
Which of the following is an integrase inhibitor?
Respuesta
-
Retrovir
-
Raltegravir
-
Indinavir
-
Lopinavir
Pregunta 101
Pregunta
TNX-355 is used to prevent virus maturation
Pregunta 102
Pregunta
When should Antiretroviral therapy be started?
Respuesta
-
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
Pregunta 103
Pregunta
Efavirenz is the recommended drug for HIV therapy in pregnant women
Pregunta 104
Pregunta
Choose the drugs that are part of HAART?
Respuesta
-
2NRTIs
-
NNRTIs
-
Ritonavir
-
Integrase
-
Enfuvirtide
-
Befirimat
-
TNX-355
-
Acyclovir
-
Famciclovir
Pregunta 105
Pregunta
Which antiviral drug prevents formation of DNA chain by inhibiting viral DNA synthesis?
Respuesta
-
Acyclovir
-
Ganciclovir
-
Raltegravir
-
Retrovir
Pregunta 106
Pregunta
Ganciclovir causes myelosuppression
Pregunta 107
Pregunta
Which of the following is used for prophylaxis of TB
Respuesta
-
Rifampin
-
Isoniazid
-
Streptomycin
-
Ethambutol
Pregunta 108
Pregunta
Which of the following is true about isoniazid?
Respuesta
-
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
Pregunta 109
Pregunta
Choose which of the following drugs are administered with isoniazid for treatment?
Respuesta
-
Rifampin
-
Ethambutol
-
Retrovir
-
Acyclovir
Pregunta 110
Pregunta
Rifampin is a "true" antibiotic
Pregunta 111
Pregunta
Which of the following is NOT true regarding Rifampin?
Respuesta
-
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
Pregunta 112
Pregunta
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?
Respuesta
-
Isoniazid
-
Rifampin
-
Ethambutol
-
Streptomycin
Pregunta 113
Pregunta
Which of the following drugs is given for prophylaxis and cure of malaria?
Respuesta
-
Fluoroquinolones
-
Quinolones
-
Albendazole
-
Chloroquine
Pregunta 114
Pregunta
Which of the following are concerns with the use of Antimalarials?
Pregunta 115
Pregunta
Which of the following is NOT a concern of antimalrials with long term drug dosing?
Respuesta
-
Retinopathy
-
Ototoxicity
-
Irreversible neuropathy
-
Nephrotoxicity
Pregunta 116
Pregunta
Epstein-Barr virus can cause nasopharyngeal cancer
Pregunta 117
Pregunta
Which of the following cause Hodgkins/Non-Hodgkins?
Respuesta
-
Hepatitis B
-
HIV
-
HPV
-
Epstein-Barr virus
Pregunta 118
Pregunta
Which of the following is part of treatment for advanced disease?
Pregunta 119
Pregunta
Which of the following NOT consistent with primary resistance in regards to cancer drugs?
Respuesta
-
No response with drug therapy
-
Blamed on loss of p53 tumor suppressor gene
-
Common in malignant melanoma
-
Increased expression of MDR1 gene
Pregunta 120
Pregunta
How do alkylating agents cause cell death in cancer drugs?
Respuesta
-
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
Pregunta 121
Pregunta
Which of the following causes hemorrhagic cystitis?
Respuesta
-
Cyclophosphamide
-
Cisplatin
-
Vincristine
-
Mitomycin
Pregunta 122
Pregunta
Which of the following causes myelosuppression?
Respuesta
-
Methotrexate
-
Vinblastine
-
Mitomycin
-
All of the above
Pregunta 123
Pregunta
Which of the following cause mucositis?
Respuesta
-
Chlorambucil
-
Vinorelbine
-
5-flurouracil
-
None of the above
Pregunta 124
Pregunta
Which of the following cause neutropenia?
Respuesta
-
Methotrexate
-
5-flurouracil
-
Mitomycin
-
Cisplatin
Pregunta 125
Pregunta
Which of the following causes SIADH?
Respuesta
-
Methotrexate
-
Vinblastine
-
Cyclophospamide
-
None of the above
Pregunta 126
Pregunta
Methotrexate has a similar mechanism to what other drug?
Respuesta
-
Sulfonamides
-
Trimethoprim
-
Fluoroquinolones
-
Penicillins
Pregunta 127
Pregunta
Which of the following drugs does NOT inhibit renal excretion of methotrexate?
Pregunta 128
Pregunta
Imatinib prevents phosphorylation of the cell kinase substrates by ATP
Pregunta 129
Pregunta
Cetuximab works against which enzyme to suppress cancer growth?
Respuesta
-
EGFR
-
Transcriptase
-
Transpeptidase
-
DNA polymerase
Pregunta 130
Pregunta
Retinoic acid is used to treat childhood ALL