MSN 611 Midterm Exam Questions with precise answers
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Eosinophils, neutrophils, and T cells contain the type of histamine receptors referred to as:
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a. H1
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b. H2
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c. H3
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d. H4 - ✔✔d. H4
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Some 1st generation antihistamines are used to treat
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a. as stimulants
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b. to prevent motion sickness
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c. as anticonvulsants
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d. as laxatives - ✔✔b. to prevent motion sickness
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2nd generation antihistamines are preferred for treating which patient category?
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a. children
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b. women
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c. patients with hypertension
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d. patients with insomnia - ✔✔a. children
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Compared to 1st generation antihistamines, 2nd generation antihistamines:
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a. are less able to penetrate the blood brain barrier
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b. have fewer muscarinic effects
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c. have greater anticholinergic effects
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d. are more likely to cause drowsiness - ✔✔a. are less able to penetrate the blood brain
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barrier
Which types of antihistamines are used to inhibit the secretion of gastric acid in patients
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with gastrointestinal disorders?
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a. H1
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b. H2
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c. H3
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d. H4 - ✔✔b. H2
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Under what two circumstances may 2nd generation antihistamines cause drowsiness?
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a. if used concurrently with medications that cause CNS depression or with alcohol
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b. if used concurrently with medications that cause CNS depression
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c. if they are taken with OTC medications
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d. if they are taken with alcohol - ✔✔a. if used concurrently with medications that cause
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CNS depression or with alcohol
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Why is it important for antiviral compounds to be able to discriminate between host and
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viral functions with a high degree of specificity?
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a. available antiviral agents mainly target stages in the viral life cycle
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,2
b. to avoid attacking host cells, since viruses replicate intracellularly and often use host cell
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enzymes, macromolecules, and organelles to make their own particles
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c. in recent years the demand for new antiviral strategies has increased marketably - ✔✔b.
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to avoid attacking host cells, since viruses replicate intracellularly and often use host cell
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enzymes, macromolecules, and organelles to make their own particles
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Which of the following statements pertains to antimicrobial therapy?
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a. lower dosage levels of antimicrobial therapy can help prevent allergic responses
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b. a differential diagnosis should indicate whether an infection is self-limiting
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c. self-limiting infections often require antimicrobial therapy
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d. in cases of sepsis, laboratory specimens are not required - ✔✔b. a differential diagnosis
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should indicate whether an infection is self-limiting
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Chose the correct statement describing antibacterial drugs:
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a. antibiotics are developed to have similar required exposure times across drug classes
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b. Penicillinase-resistant penicillins are the agents of choice for most staphylococcal disease
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c. narrow therapeutic agents have a higher safety tolerance for large fluctuations of drug in
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the blood
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d. therapeutic levels of antibacterial agents are established during tissue culture studies -
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✔✔b. Penicillinase-resistant penicillins are the agents of choice for most staphylococcal
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disease
The available modes of action of antihelmintic drugs is/are:
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a. excrete in the intestine
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b. locally within the gut lumen to cause expulsion of worms from the GI tract and
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systemically against helminths residing outside the GI tract || || || || || || ||
c. is likely present in virtually every mammal residing in a "natural" habitat
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d. systemically against helminths residing outside the GI tract - ✔✔b. locally within the gut
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lumen to cause expulsion of worms from the GI tract and systemically against helminths
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residing outside the GI tract || || || ||
The desired response to antimicrobial therapy within the first 24 to 48 hours includes:
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a. increased thirst
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b. increased sputum production
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c. white blood cell count begins to normalize
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d. spike in temperature - ✔✔c. white blood cell count begins to normalize
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Most systemic fungal infections are acquired via:
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a. oral-fecal transmission
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b. inhalation
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c. direct contact
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d. nosocomial transmission - ✔✔b. inhalation
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The ability of an agent to continually suppress growth of an organism after concentrations
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have decreased to below the minimal inhibitory concentration is known as:
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a. probiotic effect
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b. postantibiotic effect
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c. alternative effect
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