Quiz On Diseases: MCQ Exam!

18 Questions | Total Attempts: 94

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Quiz On Diseases: MCQ Exam!

How much do you know about diseases? There are chronic diseases that can be prevented or controlled. Some of the significant disease markers include high blood pressure, high cholesterol, elevated blood sugar levels, and other symptoms. These chronic diseases include asthma, heart disease, diabetes, stroke, and arthritis. Conditions can have a negative impact on a person’s life if not managed properly. This quiz will benefit your health by providing you with a stress-free way to practice for an exam.


Questions and Answers
  • 1. 
    A 24-year-old man presents with an itchy, erythematous lesion with fine scales on his calf. He asks if it might have been acquired from a neighbor's dog. You gently scrape the margins and microscopically examine the KOH-digested and warmed preparation. What would you most likely observe in the skin scrapings if this is a hyphal fungal infection?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 2. 
    A patient comes to the clinic with a sore throat. Investigations using the Mancini technique reveal that C3 levels are low, IgM levels are moderate and IgG levels are high. Which statement is most correct regarding this patient?
    • A. 

      There is no infection because complement levels are elevated during an infection

    • B. 

      The patient had not been previously exposed to the causative organisms

    • C. 

      The infection is bacterial since viruses do not induce an IgG response

    • D. 

      The patient is probably undergoing a secondary immune response

  • 3. 
    A 3-year-old girl presents to the emergency department with a high fever and confusion. Physical examination reveals high temperature, low blood pressure, and nuchal rigidity. Blood cultures and lumbar puncture are ordered, and encapsulated bacteria are seen. Which list of bacteria, below, comprises likely causative agents of her illness?
    • A. 

      Chlamydia psittaci, Streptococcus pneumoniae, Rickettsia prowazekii

    • B. 

      Escherichia coli, Neisseria meningitidis, Streptococcus pneumoniae

    • C. 

      Rickettsia prowazekii, Neisseria meningitidis, Chlamydia psittaci

    • D. 

      Escherichia coli, Neisseria meningitidis, Rickettsia prowazekii

    • E. 

      Escherichia coli, Streptococcus pneumoniae, Chlamydia psittaci

  • 4. 
    Aerosol precautions are indicated for only a few infectious diseases. Which of the following diseases is among these?
    • A. 

      Mycoplasmal pneumonia, seasonal influenza, and chickenpox

    • B. 

      Seasonal influenza, chickenpox, and measles

    • C. 

      Measles, pulmonary tuberculosis, and seasonal influenza

    • D. 

      Chickenpox, measles, and pulmonary tuberculosis

    • E. 

      Pulmonary tuberculosis, seasonal influenza, and mycoplasmal pneumonia

  • 5. 
    An 8-year-old girl presents to the school nurse complaining of an itchy rash. The rash is composed of a mixture of erythematous macules, papules, vesicles, pustules, and crusts, mostly confined to the face and trunk. The pruritus and characteristic rash allows the nurse to conclude that the child has varicella (chickenpox). Human herpesvirus 3 (varicella-zoster virus), the causative agent of chickenpox and shingles, interferes with the Jak/STAT pathway of antigen-presenting cells thereby reducing IFN-g-mediated expression of MHC-II. Which cytokine necessary for defending against viruses would be reduced in this case of viral immune evasion?
    • A. 

      IFN-y, IL-12

    • B. 

      IL-10

    • C. 

      IL-4

    • D. 

      TNF-a

    • E. 

      IL-17

  • 6. 
    A 55-year-old man presents to his physician with a cough that has been progressing over the last three weeks. Four days ago, he developed a fever with night sweats. His cough is productive of yellow sputum and the patient indicates that his sputum has a foul smell and tastes bad.  A chest x-ray reveals the presence of a lung abscess. Which piece of data is most suggestive that anaerobes are involved in this man’s infection?
    • A. 

      The foul smell and taste of the sputum

    • B. 

      Cough

    • C. 

      Yellow, not clear, sputum

    • D. 

      Fever and night sweats

  • 7. 
    A 58-year-old man is diagnosed with a stage 4 glioblastoma located in the right parietal lobe. It is the doctor’s responsibility to inform the patient of his diagnosis which the doctor does by providing him with a detailed lecture on the pathogenesis of glioblastomas. What defense mechanism did the physician unconsciously use to contain his anxiety?
    • A. 

      Acting out

    • B. 

      Denial

    • C. 

      Rationalization

    • D. 

      Sublimation

    • E. 

      Intellectualization

  • 8. 
    A 32-year-old female undergoes surgery for appendicitis. During the surgery, while the patient is under general anesthesia, you find a lesion consistent with ovarian cancer. What is the most appropriate course of action?
    • A. 

      Wake the patient and get her consent to biopsy and remove the lesion if cancerous

    • B. 

      Biopsy the lesion and remove it if it is cancerous

    • C. 

      Biopsy the lesion but don’t remove it

    • D. 

      Ask the patient’s spouse for consent to biopsy and remove the lesion if cancerous

    • E. 

      Consult with the patient’s OBGYN to determine what course of action the patient would want

  • 9. 
    A new autonomic drug that does not enter the brain was given IV to healthy volunteers in phase 1 clinical trial. The cardiovascular effects are tabulated below   Which of the following drugs did the new agent most resemble?
    • A. 

      Dobutamine

    • B. 

      Epinephrine

    • C. 

      Isoproterenol

    • D. 

      Phenylephrine

    • E. 

      Norepinephrine

  • 10. 
    A 35-year-old farmer was brought to the emergency room complaining of severe abdominal cramps, vomiting and excess salivation. His skin was flushed, warm, and moist to the touch. He stated that he was working in his field with an organophosphate pesticide. Which of the following molecular actions most likely mediated the flushed skin in this patient?
    • A. 

      Increase in intracellular Ca ++

    • B. 

      Increased cGMP synthesis

    • C. 

      Opening of Na+ channels

    • D. 

      Increased cAMP synthesis

    • E. 

      Increased IP3/DAG synthesis

  • 11. 
    Metoprolol was given IM to several dogs during a lab experiment. One hour later each dog received an autonomic drugs and the effects of that drug were recorded. Which of the following drug-induced effects was most likely best counteracted by metoprolol pretreatment?
    • A. 

      Isoproterenol-induced hyperglycemia

    • B. 

      Albuterol-induced bronchodilation

    • C. 

      Dopamine-induced renal vasodilation

    • D. 

      Atropine-induced mydriasis

    • E. 

      Dobutamine-induced tachycardia

  • 12. 
    A 25-year-old woman complained to her physician of excessive sweating on the axillae and forehead mainly at time of anxiety or excitement. The woman stated that the symptoms was very disturbing and asked for a treatment. The physician prescribed glycopyrrolate cream, to apply to the sweat area. Which of the following receptors most likely mediated the therapeutic effect of the drug in the patient’s disorder?
    • A. 

      Beta-2

    • B. 

      M3

    • C. 

      Nn

    • D. 

      D-1

    • E. 

      Alpha-2

  • 13. 
    A 69-year-old man recently diagnosed with a Proteus mirabilis infection started a treatment with a daily IM injection of gentamicin, an aminoglycoside antibiotic. Which of the following pairs of properties best explains why the drug is usually administered once daily despite gentamicin short half-life (about two hours)?
    • A. 

      Concentration-dependent killing and long postantibiotic effect

    • B. 

      Time-dependent killing and bactericidal effect

    • C. 

      Extensive plasma protein binding and bactericidal effect

    • D. 

      Dose-dependent renal impairment and bacteriostatic effect

    • E. 

      Time-dependent killing and long postantibiotic effect

  • 14. 
    A 65 year old alcoholic man is diagnosed with cirrhosis after 40 years of heavy drinking.  Which of the following is most likely associated with his diagnosis?
    • A. 

      Regeneration

    • B. 

      Repair

    • C. 

      Regeneration & repair

    • D. 

      Fibrosis

    • E. 

      Repair & Fibrosis

  • 15. 
    A 19-year-old woman is brought to the emergency room by her friends who say she has been acting strangely for the past 6 hours. They say she had been depressed after breaking up with her boyfriend 3 weeks ago. Physical examination shows that she is very drowsy and does not respond to questions appropriately. Her respiratory rate is increased and her optic discs are hyperemic. Laboratory studies show a metabolic acidosis with a high anion gap. This finding is most consistent with this woman having ingested which one of the following substances?
    • A. 

      Arsenic

    • B. 

      Lead

    • C. 

      Ethylene glycol

    • D. 

      Cyanide

    • E. 

      Methanol

  • 16. 
    A 65-year old woman presents with increasing confusion. Pertinent history is that she had been taking large amounts of laetrile as part of a metabolic therapy program. The program consists of a special diet and high dose vitamin supplements. Physical examination shows weakness of arms and legs and bilateral ptosis. Her skin has a cherry-red color and a strong smell of bitter almonds is present. Which of the following is the most likely diagnosis?
    • A. 

      Arsenic ingestion

    • B. 

      Carbon monoxide toxicity

    • C. 

      Carbon tetrachloride exposure

    • D. 

      Cyanide poisoning

    • E. 

      Ethylene glycol ingestion

  • 17. 
     A comparison of clinically diagnosed versus autopsy-confirmed gastric and peptic ulcers was performed on 100,000 consecutive diseased patients in several large hospitals as shown in the following table. From these data, what is the specificity of clinical diagnosis?
    • A. 

      1,500/4,000

    • B. 

      1,500/1700

    • C. 

      200/96,000

    • D. 

      2,500/4,000

    • E. 

      95,800/96,000

  • 18. 
    Bryan was abandoned by his mother at age 6 weeks. He was adopted by Mr. and Mrs. Brown at age 3 months. Mrs. Jones is a blind housewife and is the sole care giver for 3 children including Bryan. She cuddles him while feeding and responds consistently to Bryan’s cry. However, she does not smile at him when he looks up at her face. She is very loving towards him. What type of attachment would you expect from Bryan?
    • A. 

      Avoidant attachment

    • B. 

      Resistant attachment

    • C. 

      Secure attachment

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