Nokea
Systemic amebiasis with involvment of intestines, liver, lungs was diagnosed in a 52-year-old patient. What drug should be prescribed?
- A. Quiniofone
- B. Enteroseptol
- C. Metronidazole
- D. Tetracycline
Correct Answer: C
Rationale: Rationale: Metronidazole is the drug of choice for systemic amebiasis due to its high efficacy against Entamoeba histolytica. It has good tissue penetration and can treat intestinal, liver, and lung involvement. Quiniofone (A) has limited use and is not recommended for amebiasis. Enteroseptol (B) is not effective against systemic amebiasis. Tetracycline (D) is not the first-line treatment for amebiasis and has limited efficacy against Entamoeba histolytica.
You may also like to solve these questions
Molds belong to which of the following groups of eukaryotic organisms?
- A. Protozoans
- B. Archaea
- C. Fungi
- D. Algae
Correct Answer: C
Rationale: The correct answer is C: Fungi. Molds are a type of fungi, which are eukaryotic organisms characterized by having cell walls made of chitin. Fungi are distinct from protozoans (single-celled eukaryotes), archaea (prokaryotes), and algae (photosynthetic eukaryotes). Fungi, including molds, obtain nutrients through absorption and play crucial roles in decomposition and nutrient cycling. Therefore, molds belong to the group of eukaryotic organisms known as fungi.
Which of the following diseases is not caused by enteroviruses?
- A. Myocarditis
- B. Infectious mononucleosis
- C. Herpangina
- D. Boston Exanthema
Correct Answer: B
Rationale: Answer B, Infectious mononucleosis, is not caused by enteroviruses. Infectious mononucleosis is primarily caused by the Epstein-Barr virus, a member of the herpesvirus family, not by enteroviruses. Enteroviruses are known to cause diseases such as myocarditis, herpangina, and Boston exanthema. Therefore, B is the correct answer. Myocarditis, herpangina, and Boston exanthema can all be caused by enteroviruses, making choices A, C, and D incorrect, respectively.
Which of the statements below IS NOT CORRECT
- A. an immunocompromised person has to be vaccinated with live vaccines with caution
- B. live vaccines to not revert to virulent form
- C. microbes with many serotypes are difficult to control with vaccination
- D. side effect to vaccination can occur
Correct Answer: B
Rationale: The correct answer is B because live vaccines can potentially revert to a virulent form, although this is extremely rare. This is due to the live attenuated virus in the vaccine potentially mutating back to a more dangerous form. Live vaccines are designed to be weakened but there is a small risk of reversion. Therefore, statement B is not correct.
A: This statement is correct as immunocompromised individuals may have adverse reactions to live vaccines due to their weakened immune system.
C: This statement is correct as microbes with many serotypes can make it challenging to develop a vaccine that covers all variations.
D: This statement is correct as side effects to vaccination, although usually mild and temporary, can occur in some individuals.
Crude herbal drugs must be examined for yeast-like fungi. What agar can ensure development of these microorganisms so that associating microflora will grow very slowly or won't grow at all?
- A. Sabouraud's peptone agar
- B. Endo agar
- C. Milk-salt agar
- D. Meat infusion agar
Correct Answer: A
Rationale: The correct answer is A: Sabouraud's peptone agar. This agar is specifically designed for the isolation of yeast and molds due to its low pH and high sugar content, creating an environment conducive for their growth. Yeast-like fungi thrive in this selective medium, while inhibiting the growth of bacteria and other contaminants.
Summary:
- Sabouraud's peptone agar is ideal for cultivating yeast-like fungi.
- Endo agar is used for isolation of gram-negative bacteria, not fungi.
- Milk-salt agar is used for lactobacilli and streptococci, not fungi.
- Meat infusion agar is a general-purpose medium for cultivation of a wide range of microorganisms, not specifically for yeast-like fungi.
Rheumatic fever is usually a complication of a(n) __________ infection.
- A. Escherichia coli
- B. Streptococcus pyogenes
- C. Staphylococcus epidermidis
- D. Staphylococcus aureus
Correct Answer: B
Rationale: Rationale:
1. Streptococcus pyogenes is the causative agent of strep throat.
2. If untreated, strep throat can lead to rheumatic fever.
3. Rheumatic fever is an autoimmune complication of streptococcal infections.
4. E. coli, S. epidermidis, and S. aureus are not typically associated with rheumatic fever.