Microbiology and Pathology Quiz 12

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Question 1 of 20

1. Question

Which of the following is TRUE with regard to ABO blood typing?

Anti-B antibody is found in patients which are blood type B.
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B. Blood type O has both A and B antigens.
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Patients with erythrocyte antigen A has anti-A plasma antibody.
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Plasma antibody A and B are seen in patients with blood type O.
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Blood type AB is the universal recipient.
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Question 2 of 20

2. Question

Hemagglutination (clumping of blood cells due to antibody-antigen reaction) occurs when:

Blood type A is given to a patient with anti-B plasma antibodies.
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Blood type AB is given to a patient with anti-A plasma antibodies.
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Blood type B is given to a patient with anti-A plasma antibodies.
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Blood with erythrocyte antigen A is given to a patient anti-B plasma antibody.
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Blood with erythrocyte antigen B is given to a patient with anti-A plasma antibody.
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Question 3 of 20

3. Question

Malfunction of oxidative phosphorylation, leading to the inability to optimally produce ATP within the mitochondrion, is seen in poisoning with:

Lead
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Carbon monoxide.
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Cyanide
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Mercury.
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None of the above.
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Question 4 of 20

4. Question

Each of the following enzymes or biomarkers is elevated in the blood plasma after a myocardial infarct (MI) and heart damage EXCEPT:

CK-MB.
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Troponin T.
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Myoglobin
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Creatine phosphokinase.
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Alkaline phosphatase.
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Question 5 of 20

5. Question

Each of the following conditions can lead to tissue hypoxia (decreased oxygen delivery to tissue) EXCEPT:

Carbon monoxide poisoning
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Decreased tissue perfusion (e.g., shock).
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Decreased blood oxygenation (e.g., anemia).
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Vascular ischemia
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None of the above (meaning all listed can cause hypoxia).
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Question 6 of 20

6. Question

Which of the following is a type of irreversible cellular injury?

Karyorrhexis
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Ribosomal detachment from endoplasmic reticulum.
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Chromatin clumping
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Cellular and organelle swelling.
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Bleb formation.
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Question 7 of 20

7. Question

Each of the following cellular reactions is correctly matched with its definition EXCEPT:

Aplasia $\rightarrow$ complete lack of cells.
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Hypertrophy $\rightarrow$ increase in number of cells.
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Metaplasia $\rightarrow$ cellular change from one type to another.
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Atrophy $\rightarrow$ decrease in cellular mass.
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Hypoplasia $\rightarrow$ decrease in number of cells.
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Question 8 of 20

8. Question

Which helminth is transmitted by ingestion of undercooked pork and causes cysticercosis?

Taenia saginata
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Taenia solium
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Trichinella spiralis
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Enterobius vermicularis
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Giardia lamblia
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Question 9 of 20

9. Question

Regarding the phylogeny of parasites, which statement is FALSE?

Sporozoans are a type of Protozoa.
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Parasites are comprised of Protozoa and Metazoa.
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Nemathelminthes are a type of Protozoa.
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“Flatworms” is another name for Platyhelminthes.
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Trematoda and Cestoda are subgroups of Platyhelminthes.
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Question 10 of 20

10. Question

Which protozoa causes pneumonia in immunocompromised patients and is transmitted primarily through inhalation?

Cryptosporidium parvum
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Pneumocystis carinii
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Entamoeba histolytica
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Toxoplasma gondii
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Trichomonas vaginalis
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Question 11 of 20

11. Question

Which of the following antifungal drugs, used in troche form, is effective via inhibition of ergosterol synthesis?

Clotrimazole
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Ketoconazole
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Fluconazole
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Nystatin
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Amphotericin B
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Question 12 of 20

12. Question

A patient presents with frequent itching of the scalp, groin, and feet, along with nail fungus (tinea unguium). These symptoms (tinea corporis, tinea capitis, tinea cruris, tinea pedis, tinea unguium) are characteristic of which disease caused by molds?

Histoplasmosis
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Coccidioidomycosis
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Blastomycosis
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Dermatophytosis
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Mucormycosis
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Question 13 of 20

13. Question

If a patient is suffering from a fungal infection (Dermatophytosis), treatment could include each of the following EXCEPT:

Miconazole
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Clotrimazole
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Trimethoprim
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Tolnaftate
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Griseofulvin
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Question 14 of 20

14. Question

Which of the following is TRUE of fungi?

They are gram positive.
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Cell walls are composed of ergosterol.
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They are obligate anaerobes.
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They are prokaryotic
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Their asexual form of reproduction is via spores.
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Question 15 of 20

15. Question

A 45-year-old patient presents with jaundice, fatigue, muscle ache, fevers, and nausea. He has a history of multiple sexual partners. You suspect a chronic liver disease associated with hepatocellular carcinoma. Which disease is suspected?

HIV
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Syphilis
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Hepatitis C
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Gonorrhea
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Chlamydia
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Question 16 of 20

16. Question

A laboratory finding of Hepatitis B surface Antigen ($\text{HBsAg}$) is consistent with which infection state?

Acute hepatitis C infection
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Acute hepatitis A infection
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Acute hepatitis B infection
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Chronic hepatitis E infection
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Chronic hepatitis B infection
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Question 17 of 20

17. Question

For which type of hepatitis is there a commonly administered vaccine for healthcare workers due to high bloodborne transmission risk?

Hepatitis A
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Hepatitis B
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Hepatitis C
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Hepatitis D
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Hepatitis E
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Question 18 of 20

18. Question

The Picornavirus family, characterized as a single-stranded RNA virus lacking an envelope, is responsible for which form of hepatitis?

Hepatitis A
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Hepatitis B
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Hepatitis C
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Hepatitis D
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Hepatitis E
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Question 19 of 20

19. Question

Which form of sterilization uses moist heat to denature proteins at $121^\circ\text{C}$ ($250^\circ\text{F}$) for $15$-$20$ minutes and is the only way to be sure that the hepatitis B virus is effectively destroyed?

Autoclaving
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Ethylene oxide gas
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Chemical vapor
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Formaldehyde
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Glutaraldehyde
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Question 20 of 20

20. Question

Which of the following is TRUE of using Glutaraldehyde 2% as a sterilization technique?

The technique takes very little time.
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It is not associated with hypersensitivity.
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It alkylates nucleic acids and proteins.
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It denatures proteins.
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It is the preferred method of sterilizing liquid solutions.
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Microbiology and Pathology Quiz 12

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