Immunology Exam 1 Review
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Questions and Answers

What is a major risk associated with the use of opioids for pain management?

  • Acute kidney failure
  • Respiratory depression (correct)
  • Increased heart rate
  • Severe allergic reaction
  • Which of the following drugs should not be administered with grapefruit juice due to potential interactions?

  • Naloxone
  • Morphine
  • Ibuprofen
  • St John's Wort (correct)
  • Which fibers are responsible for transmitting sharp pain quickly to the brain?

  • B fibers
  • A fibers (correct)
  • Delta fibers
  • C fibers
  • What side effect is commonly associated with the use of morphine?

    <p>Respiratory depression</p> Signup and view all the answers

    Which medication is categorized as category X and is contraindicated in pregnancy?

    <p>Ergotamine</p> Signup and view all the answers

    What is the primary role of T cells in the immune response?

    <p>To kill infected cells directly</p> Signup and view all the answers

    Which of the following statements about immunomodulators is correct?

    <p>Cyclosporine can prevent organ rejection.</p> Signup and view all the answers

    What effect does propofol have in anesthesia?

    <p>Induces loss of consciousness</p> Signup and view all the answers

    What type of immunity does IgE primarily mediate?

    <p>Allergic reactions</p> Signup and view all the answers

    Which of the following drugs can exacerbate bleeding due to its inhibition of COX enzymes?

    <p>Ibuprofen</p> Signup and view all the answers

    What happens to nociceptors when they are stimulated?

    <p>They initiate the release of neurotransmitters like Substance P.</p> Signup and view all the answers

    Which type of vaccine involves a weakened form of the pathogen?

    <p>Live vaccine</p> Signup and view all the answers

    What is a potential side effect of corticosteroid medications?

    <p>Hyperglycemia</p> Signup and view all the answers

    What is a known effect of succinylcholine during anesthesia?

    <p>Causes complete paralysis without pain relief</p> Signup and view all the answers

    What is the function of B cells in adaptive immunity?

    <p>Producing antibodies</p> Signup and view all the answers

    Which of the following is NOT true regarding aspirin's action?

    <p>It is a potent muscarinic antagonist.</p> Signup and view all the answers

    Which type of vaccine can people not contract the disease from?

    <p>Recombinant vaccine</p> Signup and view all the answers

    What effect do interferons have in the immune system?

    <p>They are effective against viral infections.</p> Signup and view all the answers

    How should corticosteroids be discontinued to avoid withdrawal symptoms?

    <p>Tapered off slowly</p> Signup and view all the answers

    Which type of immunity is provided by toxoid vaccines?

    <p>Adaptive immunity</p> Signup and view all the answers

    What is the role of B cells when they encounter a new invader?

    <p>They recognize the invader and produce antibodies.</p> Signup and view all the answers

    Which characteristic is true about live vaccines?

    <p>They can cause a mild infection in healthy individuals.</p> Signup and view all the answers

    What is a common side effect associated with the use of steroids?

    <p>Hyperglycemia</p> Signup and view all the answers

    How does cyclosporine primarily function as an immunomodulator?

    <p>It suppresses T cell activity.</p> Signup and view all the answers

    What is the unique feature of recombinant vaccines?

    <p>They are created using laboratory techniques and do not pose infection risk.</p> Signup and view all the answers

    Which immunoglobulin is most abundant and associated with long-term immunity from vaccines?

    <p>IgG</p> Signup and view all the answers

    What is the purpose of tapering off steroids slowly?

    <p>To avoid withdrawal symptoms.</p> Signup and view all the answers

    Which type of vaccine can lead to passive immunity?

    <p>Toxoid vaccine</p> Signup and view all the answers

    What potential effect do interferons have on patients?

    <p>They can cause flu-like symptoms.</p> Signup and view all the answers

    In what way do T cells function in the immune response?

    <p>They recognize and directly kill infected cells.</p> Signup and view all the answers

    What should be monitored in a patient taking Tylenol due to its potential impact on the liver?

    <p>AST or ALT levels</p> Signup and view all the answers

    Which of the following is NOT a known side effect of morphine?

    <p>Increased heart rate</p> Signup and view all the answers

    Why should ergots be strictly avoided in pregnant patients?

    <p>They can harm the fetus and cause miscarriage.</p> Signup and view all the answers

    Which type of anesthesia is characterized by complete loss of consciousness and all reflexes?

    <p>General anesthesia</p> Signup and view all the answers

    What is the primary action of nitrous oxide in anesthesia?

    <p>Mental state alteration</p> Signup and view all the answers

    What type of pain is primarily transmitted by C fibers?

    <p>Dull pain</p> Signup and view all the answers

    What is a crucial piece of information to communicate to patients taking sumatriptan for migraines?

    <p>It may cause chest pain as a side effect.</p> Signup and view all the answers

    Which of the following statements about succinylcholine is accurate?

    <p>It causes complete paralysis but does not provide analgesia.</p> Signup and view all the answers

    What should be considered when prescribing ibuprofen to patients with kidney issues?

    <p>It can exacerbate kidney function decline.</p> Signup and view all the answers

    What herbal supplement is known to interact negatively with several medications, particularly those affecting blood pressure?

    <p>St. John's Wort</p> Signup and view all the answers

    What is the primary characteristic of innate immunity?

    <p>It acts immediately upon detection of invaders.</p> Signup and view all the answers

    Which immunoglobulin is specifically associated with allergic reactions?

    <p>IgE</p> Signup and view all the answers

    What is a significant risk when using immunomodulators like cyclosporine?

    <p>It may counteract certain supplements that boost immunity.</p> Signup and view all the answers

    Which of the following best describes live vaccines?

    <p>They are composed of live but weakened pathogens.</p> Signup and view all the answers

    What is the main consequence of quickly tapering off steroid medications?

    <p>A potential adrenal crisis due to sudden withdrawal.</p> Signup and view all the answers

    What is a potential effect of long-term administration of morphine on respiratory function?

    <p>Reduced respiratory rate</p> Signup and view all the answers

    Which medication is contraindicated in patients with a history of malignant hyperthermia?

    <p>Isoflurane</p> Signup and view all the answers

    What mechanism describes the action of triptans in treating migraines?

    <p>Vasoconstriction of cerebral vessels</p> Signup and view all the answers

    In the context of pain transmission, what role does Substance P play?

    <p>It facilitates the continuation of pain signaling to the brain.</p> Signup and view all the answers

    What is a significant risk associated with the use of high doses of acetaminophen (Tylenol) over an extended period?

    <p>Hepatotoxicity</p> Signup and view all the answers

    Study Notes

    Immune System Overview

    • Innate immunity provides immediate response to pathogens without specificity.
    • Adaptive immunity relies on T and B lymphocytes to identify and target specific pathogens.
    • B cells differentiate into plasma cells to produce antibodies against specific invaders.
    • Cytotoxic T cells directly kill infected or abnormal cells.

    Immunomodulators and Medications

    • Cyclosporine is an immunosuppressant used in organ transplants to prevent rejection, affecting T cells.
    • Echinacea and other immune-boosting supplements may counteract cyclosporine’s effects.
    • Prednisone, anti-inflammatory steroids, can reduce immune function and must be tapered off slowly.
    • Steroids may cause hyperglycemia as a side effect.

    Antibody Classes

    • IgG is the most abundant antibody and is associated with long-term vaccine responses.
    • IgM plays a role in the initial immune response.
    • IgE is primarily involved in allergic reactions.

    Vaccination Types

    • Live vaccines contain weakened versions of pathogens; not suitable for immunocompromised individuals.
    • Examples: COVID-19 and flu vaccines.
    • Toxoid vaccines provide immunity against toxins (e.g., tetanus, rabies).
    • Inactivated vaccines, like the polio vaccine, cannot cause disease.
    • Recombinant vaccines are created in labs and do not contain live pathogens.

    Interferons

    • Interferons are used for treating viral infections such as hepatitis C and HPV.
    • May cause flu-like symptoms and have a black box warning for suicide risk due to serotonin depletion.

    Pain Management and Analgesics

    • Acetaminophen (Tylenol) can increase liver enzymes (AST, ALT), requiring caution for liver health.
    • Ibuprofen inhibits COX-1/COX-2, posing risks of bleeding and is contraindicated in patients with one kidney.
    • Aspirin binds to red blood cells for 7 days, increasing bleeding risk.
    • Nociceptors detect tissue pain through A (sharp pain, myelinated) and C fibers (dull pain, unmyelinated).
    • Opioids like morphine target mu and kappa receptors, effective for severe pain but carry risks of respiratory depression and hypotension.
    • Naloxone reverses opioid overdose symptoms, particularly low respiratory and heart rates.

    Migraine Treatment

    • Migraines are often triggered by vasodilation; treated with triptans that induce vasoconstriction.
    • Ergotamine is contraindicated in pregnancy (Category X) and must not be given if pregnancy is denied.
    • Avoid grapefruit juice with certain medications due to potential interactions.

    Anesthesia

    • General anesthesia leads to loss of consciousness and prevents pain sensation during surgery.
    • Nitrous oxide is a short-acting anesthetic gas that alters mental state without loss of consciousness.
    • Isoflurane is a volatile anesthetic that poses risks of malignant hyperthermia when combined with muscle relaxants.
    • Succinycholine causes paralysis but does not provide pain relief; it is unsafe with malignant hyperthermia triggers.
    • Dantrolene is used for treating muscle rigidity and is hepatotoxic, particularly in women over 35.

    Pain Transmission Process

    • Initial stimulation of nociceptors generates impulses through sensory neurons (A and C fibers).
    • Neurotransmitter substance P is released in the spinal cord, continuing the pain signal to the brain.
    • Chronic pain can lead to mental health issues, emphasizing the importance of effective pain management strategies.

    Immune System Overview

    • Innate immunity provides immediate response to pathogens without specificity.
    • Adaptive immunity relies on T and B lymphocytes to identify and target specific pathogens.
    • B cells differentiate into plasma cells to produce antibodies against specific invaders.
    • Cytotoxic T cells directly kill infected or abnormal cells.

    Immunomodulators and Medications

    • Cyclosporine is an immunosuppressant used in organ transplants to prevent rejection, affecting T cells.
    • Echinacea and other immune-boosting supplements may counteract cyclosporine’s effects.
    • Prednisone, anti-inflammatory steroids, can reduce immune function and must be tapered off slowly.
    • Steroids may cause hyperglycemia as a side effect.

    Antibody Classes

    • IgG is the most abundant antibody and is associated with long-term vaccine responses.
    • IgM plays a role in the initial immune response.
    • IgE is primarily involved in allergic reactions.

    Vaccination Types

    • Live vaccines contain weakened versions of pathogens; not suitable for immunocompromised individuals.
    • Examples: COVID-19 and flu vaccines.
    • Toxoid vaccines provide immunity against toxins (e.g., tetanus, rabies).
    • Inactivated vaccines, like the polio vaccine, cannot cause disease.
    • Recombinant vaccines are created in labs and do not contain live pathogens.

    Interferons

    • Interferons are used for treating viral infections such as hepatitis C and HPV.
    • May cause flu-like symptoms and have a black box warning for suicide risk due to serotonin depletion.

    Pain Management and Analgesics

    • Acetaminophen (Tylenol) can increase liver enzymes (AST, ALT), requiring caution for liver health.
    • Ibuprofen inhibits COX-1/COX-2, posing risks of bleeding and is contraindicated in patients with one kidney.
    • Aspirin binds to red blood cells for 7 days, increasing bleeding risk.
    • Nociceptors detect tissue pain through A (sharp pain, myelinated) and C fibers (dull pain, unmyelinated).
    • Opioids like morphine target mu and kappa receptors, effective for severe pain but carry risks of respiratory depression and hypotension.
    • Naloxone reverses opioid overdose symptoms, particularly low respiratory and heart rates.

    Migraine Treatment

    • Migraines are often triggered by vasodilation; treated with triptans that induce vasoconstriction.
    • Ergotamine is contraindicated in pregnancy (Category X) and must not be given if pregnancy is denied.
    • Avoid grapefruit juice with certain medications due to potential interactions.

    Anesthesia

    • General anesthesia leads to loss of consciousness and prevents pain sensation during surgery.
    • Nitrous oxide is a short-acting anesthetic gas that alters mental state without loss of consciousness.
    • Isoflurane is a volatile anesthetic that poses risks of malignant hyperthermia when combined with muscle relaxants.
    • Succinycholine causes paralysis but does not provide pain relief; it is unsafe with malignant hyperthermia triggers.
    • Dantrolene is used for treating muscle rigidity and is hepatotoxic, particularly in women over 35.

    Pain Transmission Process

    • Initial stimulation of nociceptors generates impulses through sensory neurons (A and C fibers).
    • Neurotransmitter substance P is released in the spinal cord, continuing the pain signal to the brain.
    • Chronic pain can lead to mental health issues, emphasizing the importance of effective pain management strategies.

    Immune System Overview

    • Innate immunity provides immediate response to pathogens without specificity.
    • Adaptive immunity relies on T and B lymphocytes to identify and target specific pathogens.
    • B cells differentiate into plasma cells to produce antibodies against specific invaders.
    • Cytotoxic T cells directly kill infected or abnormal cells.

    Immunomodulators and Medications

    • Cyclosporine is an immunosuppressant used in organ transplants to prevent rejection, affecting T cells.
    • Echinacea and other immune-boosting supplements may counteract cyclosporine’s effects.
    • Prednisone, anti-inflammatory steroids, can reduce immune function and must be tapered off slowly.
    • Steroids may cause hyperglycemia as a side effect.

    Antibody Classes

    • IgG is the most abundant antibody and is associated with long-term vaccine responses.
    • IgM plays a role in the initial immune response.
    • IgE is primarily involved in allergic reactions.

    Vaccination Types

    • Live vaccines contain weakened versions of pathogens; not suitable for immunocompromised individuals.
    • Examples: COVID-19 and flu vaccines.
    • Toxoid vaccines provide immunity against toxins (e.g., tetanus, rabies).
    • Inactivated vaccines, like the polio vaccine, cannot cause disease.
    • Recombinant vaccines are created in labs and do not contain live pathogens.

    Interferons

    • Interferons are used for treating viral infections such as hepatitis C and HPV.
    • May cause flu-like symptoms and have a black box warning for suicide risk due to serotonin depletion.

    Pain Management and Analgesics

    • Acetaminophen (Tylenol) can increase liver enzymes (AST, ALT), requiring caution for liver health.
    • Ibuprofen inhibits COX-1/COX-2, posing risks of bleeding and is contraindicated in patients with one kidney.
    • Aspirin binds to red blood cells for 7 days, increasing bleeding risk.
    • Nociceptors detect tissue pain through A (sharp pain, myelinated) and C fibers (dull pain, unmyelinated).
    • Opioids like morphine target mu and kappa receptors, effective for severe pain but carry risks of respiratory depression and hypotension.
    • Naloxone reverses opioid overdose symptoms, particularly low respiratory and heart rates.

    Migraine Treatment

    • Migraines are often triggered by vasodilation; treated with triptans that induce vasoconstriction.
    • Ergotamine is contraindicated in pregnancy (Category X) and must not be given if pregnancy is denied.
    • Avoid grapefruit juice with certain medications due to potential interactions.

    Anesthesia

    • General anesthesia leads to loss of consciousness and prevents pain sensation during surgery.
    • Nitrous oxide is a short-acting anesthetic gas that alters mental state without loss of consciousness.
    • Isoflurane is a volatile anesthetic that poses risks of malignant hyperthermia when combined with muscle relaxants.
    • Succinycholine causes paralysis but does not provide pain relief; it is unsafe with malignant hyperthermia triggers.
    • Dantrolene is used for treating muscle rigidity and is hepatotoxic, particularly in women over 35.

    Pain Transmission Process

    • Initial stimulation of nociceptors generates impulses through sensory neurons (A and C fibers).
    • Neurotransmitter substance P is released in the spinal cord, continuing the pain signal to the brain.
    • Chronic pain can lead to mental health issues, emphasizing the importance of effective pain management strategies.

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    Description

    This quiz covers key concepts in immunology, focusing on the innate and adaptive immune systems. Learn about the roles of T and B lymphocytes, how they respond to pathogens, and the use of immunomodulators in organ transplants. Test your understanding of these fundamental principles.

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