ATI RN
Microbiology Chapter 14 Test Bank Questions
Question 1 of 5
A woman gave birth to a stillborn baby with numerous malformations. What protozoan disease could cause intrauterine death?
Correct Answer: A
Rationale: The correct answer is A: Toxoplasmosis. Toxoplasmosis is caused by the protozoan Toxoplasma gondii, which can be transmitted from mother to fetus during pregnancy leading to stillbirth and malformations. This parasite can cross the placenta and infect the fetus, causing severe complications. Leishmaniasis (B), Malaria (C), and Amebiasis (D) are not known to cause intrauterine death or malformations in the same way as Toxoplasmosis. Leishmaniasis is transmitted by sandflies, Malaria by mosquitoes, and Amebiasis by contaminated food or water.
Question 2 of 5
On examination of a patient with disease onset 5 days ago the doctor suspected tularemia and prescribed the patient tularin intracutaneously. What is the purpose of this drug administration in the patient?
Correct Answer: C
Rationale: The correct answer is C: Treatment. Tularin is a specific immunizing agent used for the treatment of tularemia. The purpose of tularin administration in this patient is to provide a targeted treatment against the suspected tularemia infection. It helps the patient's immune system to recognize and fight against the bacteria causing the disease. Explanation for other choices: A: Allergy diagnostics - Tularin is not used for allergy diagnostics, as it is specifically indicated for tularemia treatment. B: Prognosis for the disease - Tularin is not used to predict the outcome of the disease but rather to treat the infection. D: Treatment evaluation - Tularin is not used for evaluating the effectiveness of treatment but for actively treating the tularemia infection.
Question 3 of 5
Which of these viruses is a laboratory product?
Correct Answer: C
Rationale: Rationale: 1. Vaccinia is a laboratory product used in smallpox vaccination. 2. Variola is the virus that causes smallpox, not a laboratory product. 3. Monkeypox is a naturally occurring virus, not a laboratory product. 4. Cowpox can be found in nature and is used in vaccine production, but it is not a laboratory product like Vaccinia.
Question 4 of 5
A man died from an acute infectious disease accompanied by fever, jaundice, haemorrhagic rash on the skin and mucous membranes as well as by acute renal insufficiency. Histological examination of renal tissue (stained by Romanovsky-Giemsa method) revealed some convoluted bacteria looking like C and S letters. What bacteria were revealed?
Correct Answer: A
Rationale: The correct answer is A: Leptospira. The key features pointing to Leptospira are the presence of convoluted bacteria resembling C and S letters, which is characteristic of Leptospira species. Leptospirosis presents with fever, jaundice, haemorrhagic rash, and acute renal insufficiency. The other choices (B: Treponema, C: Spirilla, D: Borrelia) do not match the histological description or the clinical presentation of the case. Treponema is associated with syphilis, Spirilla with genus Spirochaeta, and Borrelia with Lyme disease, none of which match the given scenario.
Question 5 of 5
Which of the following infectious disease is considered a newly emerging disease?
Correct Answer: A
Rationale: The correct answer is A: Hantavirus. Hantavirus is considered a newly emerging disease because it was first identified in the late 20th century. It is transmitted to humans through rodents and can lead to severe respiratory illness. Malaria, Tuberculosis, and Chlamydia are not considered newly emerging diseases as they have been known for centuries and continue to be prevalent worldwide. Therefore, based on the timeline of discovery and emergence, Hantavirus is the most recent infectious disease among the options provided.
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