Anti Mycobacterial Practice Questions

Question 1:
Which of the following is commonly used as a screening test for tuberculosis?

A) Chest X-ray
B) Sputum culture
C) Skin tuberculin test (Mantoux)
D) Blood culture
E) Bronchoscopy

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Question 2:
Where is the skin tuberculin test (Mantoux) typically administered on the body?

A) Upper arm
B) Abdomen
C) Forearm
D) Thigh
E) Back

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Question 3:
Which of the following bacteria is identified as acid-fast when using a Ziehl-Neelsen stain?

A) Escherichia coli
B) Staphylococcus aureus
C) Mycobacterium tuberculosis
D) Streptococcus pneumoniae
E) Clostridium difficile

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Question 4:
The tuberculin skin test is an example of which type of hypersensitivity reaction?

A) Type I
B) Type II
C) Type III
D) Type IV
E) Type V

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Question 5:
In HIV patients, which of the following is a common opportunistic infection?

A) Pneumonia
B) Tuberculosis
C) Hepatitis C
D) Herpes Simplex Virus
E) Epstein-Barr Virus

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Question 6:
Which of the following symptoms is more characteristic of tuberculosis than pneumonia?

A) Fever and chills
B) Chest pain
C) Productive cough
D) Weight loss and night sweats
E) Shortness of breath

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Question 7:
Where is the site of administration for the tuberculosis screening skin test (Mantoux test)?

A) Upper arm
B) Thigh
C) Forearm
D) Abdomen
E) Back of the hand

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Question 8:
Which of the following is the standard combination therapy for treating tuberculosis?

A) Amoxicillin, ciprofloxacin, doxycycline
B) INH, rifampin, pyrazinamide, ethambutol
C) Azithromycin, ceftriaxone, metronidazole
D) Vancomycin, gentamicin, linezolid
E) Penicillin, clarithromycin, tetracycline

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Question 9:
Peripheral neuritis caused by isoniazid (INH) can be managed by administering which vitamin?

A) Vitamin A
B) Vitamin C
C) Vitamin D
D) Vitamin B6
E) Vitamin E

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Question 10:
Which of the following infections is known for forming granulomas?

A) Influenza
B) Tuberculosis
C) Herpes simplex
D) Chickenpox
E) Measles

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Question 11:
What does a positive Mantoux test for tuberculin (TB purified protein derivative PPD) indicate?

A) Active tuberculosis infection
B) Latent tuberculosis infection
C) Previous vaccination with BCG
D) Exposure to tuberculosis bacteria
E) All of the above

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Question 12:
Which drugs are known to discolor urine, tears, saliva, feces, and sweat?

A) Rifampin and pyrantel pamoate
B) Isoniazid and ethambutol
C) Azithromycin and ciprofloxacin
D) Doxycycline and amoxicillin
E) Clindamycin and metronidazole

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Question 13:
Rifampin is commonly used as a prophylactic treatment for which condition?

A) Tuberculosis
B) Meningitis
C) Influenza
D) Pneumonia
E) HIV

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Question 14:
Which drugs are known to cause red-colored urine?

A) Rifampin, pyrantel pamoate, phenazopyridine, and entacapone
B) Isoniazid, metronidazole, and clindamycin
C) Amoxicillin, ceftriaxone, and azithromycin
D) Doxycycline, ciprofloxacin, and levofloxacin
E) Clarithromycin, erythromycin, and tetracycline

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Question 15:
Rifampin is a potent inducer of which cytochrome P450 enzymes?

A) CYP1A2, 2D6, 2C9, 2C19, 3A4
B) CYP2E1, 2B6, 2C8, 2C19
C) CYP3A4, 2C19, 2A6
D) CYP2D6, 3A5, 2C8
E) CYP1A1, 2A6, 2B7

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Question 16:
Which drugs decrease vitamin B6 levels and therefore require vitamin B6 supplements?

A) INH and penicillamine
B) Rifampin and ethambutol
C) Amoxicillin and ciprofloxacin
D) Doxycycline and clindamycin
E) Azithromycin and metronidazole

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Question 17:
Screening for tuberculosis is required before initiating which type of medication?

A) Corticosteroids
B) Antibiotics
C) TNF-alpha inhibitors
D) Antifungals
E) Antivirals

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Question 18:
The Mantoux test for tuberculin (TB purified protein derivative PPD) is indicative of what condition?

A) Active tuberculosis
B) Latent tuberculosis
C) Mycobacterium tuberculosis infection
D) Previous BCG vaccination
E) All of the above

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Question 19:
Peripheral neuritis caused by isoniazid can be managed by administering what daily dose of pyridoxine?

A) 5 to 10 mg/day
B) 10 to 20 mg/day
C) 15 to 50 mg/day
D) 60 to 100 mg/day
E) 100 to 200 mg/day

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Question 20:
Vitamin B6 deficiency decreases the levels of which neurotransmitter, potentially leading to convulsions?

A) Dopamine
B) Serotonin
C) GABA
D) Acetylcholine
E) Glutamate

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Question 21:
What type of hypersensitivity reaction is the tuberculin skin test (Mantoux test)?

A) Type I
B) Type II
C) Type III
D) Type IV
E) None of the above

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Question 22:
When should antitubercular drugs be taken for optimal absorption?

A) With meals
B) On an empty stomach
C) With a high-fat meal
D) With a glass of milk
E) Before bedtime

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Question 23:
Which of the following infections is known for forming granulomas?

A) Mycobacterium tuberculosis
B) Streptococcus pneumoniae
C) Escherichia coli
D) Haemophilus influenzae
E) Staphylococcus aureus

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Question 24:
Which of the following is the drug of choice for the treatment of tuberculosis?

A) Amoxicillin
B) Ciprofloxacin
C) Isoniazid
D) Azithromycin
E) Doxycycline

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Question 25:
Which of the following is the first-line treatment for latent tuberculosis infection?

A) Isoniazid for 9 months
B) Ciprofloxacin for 6 months
C) Rifampin for 3 months
D) Pyrazinamide for 2 months
E) Ethambutol for 4 months

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Question 26:
Which of the following symptoms is most indicative of active tuberculosis infection?

A) Sore throat
B) Diarrhea
C) Productive cough lasting more than 3 weeks
D) Nasal congestion
E) Muscle pain

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Question 27:
What is the primary reason for using multiple drugs in the treatment of tuberculosis?

A) To reduce cost
B) To enhance patient compliance
C) To prevent the development of drug resistance
D) To minimize side effects
E) To shorten the treatment duration

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Question 28:
Which of the following tuberculosis medications is associated with optic neuritis as a side effect?

A) Isoniazid
B) Rifampin
C) Ethambutol
D) Pyrazinamide
E) Streptomycin

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Question 29:
Which of the following antitubercular drugs is known to decrease vitamin B6 levels and may require supplementation?

A) Rifampin
B) Isoniazid
C) Pyrazinamide
D) Ethambutol
E) Streptomycin

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Question 30:
Which type of bacteria is Mycobacterium tuberculosis classified as?

A) Gram-positive cocci
B) Gram-negative bacilli
C) Acid-fast bacilli
D) Spirochetes
E) Mycoplasma

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Question 31:
What is the primary route of transmission for tuberculosis?

A) Fecal-oral
B) Bloodborne
C) Respiratory droplets
D) Skin contact
E) Vector-borne

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Question 32:
What is a common distinguishing symptom of tuberculosis compared to other respiratory infections?

A) Productive cough
B) Weight loss and night sweats
C) Shortness of breath
D) Sore throat
E) Runny nose

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Question 33

A 65-year-old man is undergoing treatment for tuberculosis (TB) with rifampin. He is also taking warfarin for atrial fibrillation. What is the most likely interaction between rifampin and warfarin?

A) Rifampin inhibits the metabolism of warfarin, increasing the risk of bleeding.
B) Rifampin induces the metabolism of warfarin, decreasing its effectiveness and increasing the risk of clot formation.
C) Rifampin has no significant interaction with warfarin.
D) Rifampin enhances the anticoagulant effect of warfarin, requiring dose reduction.
E) Rifampin competes with warfarin for binding sites, leading to increased warfarin levels.

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Question 34

A 45-year-old woman with epilepsy is being treated for latent tuberculosis with isoniazid. She is also taking phenytoin to control her seizures. What is the potential interaction between isoniazid and phenytoin?

A) Isoniazid inhibits the metabolism of phenytoin, increasing the risk of phenytoin toxicity.
B) Isoniazid induces the metabolism of phenytoin, decreasing its effectiveness.
C) Isoniazid has no effect on phenytoin levels.
D) Isoniazid and phenytoin work synergistically to prevent seizures.
E) Isoniazid reduces the absorption of phenytoin, leading to subtherapeutic levels.

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Question 35

A 30-year-old woman is receiving rifampin for TB treatment. She is also using oral contraceptives (ethinyl estradiol and norethindrone) for birth control. What is the most important consideration regarding the interaction between rifampin and oral contraceptives?

A) Rifampin has no effect on the effectiveness of oral contraceptives.
B) Rifampin inhibits the metabolism of oral contraceptives, increasing the risk of side effects.
C) Rifampin induces the metabolism of oral contraceptives, decreasing their effectiveness and increasing the risk of unintended pregnancy.
D) Rifampin increases the absorption of oral contraceptives, making them more effective.
E) Rifampin and oral contraceptives interact to reduce blood pressure.

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Question 36

A 50-year-old man with HIV is diagnosed with tuberculosis and started on rifampin. He is currently on antiretroviral therapy that includes the protease inhibitor ritonavir. What is the most likely interaction between rifampin and ritonavir?

A) Rifampin inhibits the metabolism of ritonavir, increasing the risk of toxicity.
B) Rifampin induces the metabolism of ritonavir, decreasing its effectiveness and leading to HIV treatment failure.
C) Rifampin and ritonavir have no significant interaction.
D) Rifampin enhances the antiviral activity of ritonavir.
E) Rifampin competes with ritonavir for protein binding, increasing ritonavir levels.

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Question 37

A 55-year-old man with a history of gout is prescribed pyrazinamide as part of his TB treatment regimen. He is currently taking allopurinol to manage his gout. What potential interaction should the pharmacist be aware of between pyrazinamide and allopurinol?

A) Pyrazinamide inhibits the metabolism of allopurinol, increasing the risk of allopurinol toxicity.
B) Pyrazinamide and allopurinol interact to cause severe liver toxicity.
C) Pyrazinamide increases uric acid levels, potentially worsening gout symptoms despite allopurinol therapy.
D) Pyrazinamide reduces the effectiveness of allopurinol, requiring a dose increase.
E) Pyrazinamide and allopurinol should not be taken together due to severe GI upset.