Most anti-infective medications cause GI disturbances such as nausea, vomiting, diarrhea, and abdominal pain. True False
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Step 1: Anti-infective medications are used to treat infections. Show more…
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Staphylococcus infections can be treated with penicillins. True False The most versatile and useful antifungal drug that is used to treat serious systemic fungal infections is nystatin. griseofulvin. amphotericin B. sulfa drugs metronidazole. The drug used against intestinal anaerobic bacteria, that can also alter normal microbiota causing antibiotic-associated colitis is chloramphenicol.
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QUESTION 1 Which of the following antimicrobial agents are useful to treat gram-negative bacterial infections? Antifungals Antivirals Penicillin Aminoglycosides QUESTION 2 Which of the following affects the elimination of bacteria from an object? number of bacteria present temperature presence of organic matter all of the above QUESTION 3 The antimicrobial drugs that may suppress normal flora, lead to superinfections, and may discolor the teeth: Aminoglycosides Chloramphenicol Lincomycin Macrolides Tetracyclines QUESTION 4 Which of the following statements about penicillinase is CORRECT? it is produced by many bacteria that render penicillin ineffective natural penicillins such as Pen V are susceptible to penicillinases some semisynthetic penicillins are resistant to effects of penicillinase all of the above are true none of the above are true QUESTION 5 The structures of the influenza drug Tamiflu and salicylic acid, the substrate for influenza virus's neuraminidase, are shown in Figure 20.4. What is the method of action of Tamiflu? inhibits cell wall synthesis inhibits plasma membrane synthesis inhibits synthesis of neuraminidase competitive inhibition prevents synthesis of virus spikes QUESTION 6 If a patient understands the medication teaching from the nurse, the patient would say the following regarding their antiviral herpes medication, Acyclovir. "This medication may help shorten the duration of an outbreak of herpes" "This medication will cure my herpes" "This medication damages the virus cell wall" none of the above QUESTION 7 Vancomycin interferes with viral replication is a "last line" intravenous antibiotic against resistant S. aureus is an over-the-counter antiviral medication is non-toxic and can be taken orally QUESTION 8 Which of the following statements about iodophors is INCORRECT? iodophors are a combination of iodine and organic molecules pseudomonads are destroyed in iodophors Betadine is an example of an iodophor Betadine is used as a surgical and hand scrub QUESTION 9 Which of the following treatments does NOT sterilize? desiccation (drying) UV radiation ionizing radiation filtration QUESTION 10 Which of the following does NOT affect eukaryotic cells? antiprotozoan drugs antihelminthic drugs antifungal drugs nucleotide analogs synthetic penicillins QUESTION 11 Which of the following does NOT achieve sterilization? dry heat pasteurization autoclave formaldehyde ethylene oxide QUESTION 12 If a patient understands the medication teaching from the nurse, the patient would say the following regarding their prescription of antibiotics. "I will take the medication until I feel better" "I can use this medication next time I have a cold" "I can use the rest of my husband's old prescription of antibiotics at home" "I will complete the entire course of antibiotics prescribed by my doctor
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23. Which of the following is false concerning fungal infections? Different locations of dermatophytic infections are designated Tinea corporis. Most serious human fungal infections are acquired from other people. Dimorphism (yeast mold) is observed with certain systemic fungal infections. Trichophyton, Epidermophyton, and Microsporum are dermatophytes that cause infections of the skin, nails, and hair. 24. Concerning helminths, which of the following is false? Nematodes have a body cavity and a digestive tube ending in males and females. Cestodes have no body cavity, no digestive tube, and are hermaphroditic. They are all chemoheterotrophs. Trematodes have a body cavity and a digestive tract ending in a cecum. None of the above is false. 25. Which of the following is false concerning helminths? Schistosoma mansoni requires both human and specific snail hosts. Taenia solium can acquire a mask of host antigens for disguise. Ingestion of the eggs of the beef tapeworm causes cysticercosis with systemic spread of larvae. Ascaris lumbricoides forms "worm balls" in the intestine. Liver damage with Schistosoma mansoni results from the host response (granulomas) around eggs recognized as foreign. 26. Which of the following is false concerning Streptococcus pyogenes? Gram-positive bacteria called Group A strep causes strep throat. It can cause rheumatic fever with heart damage if untreated and kidney problems (acute glomerulonephritis) if untreated. 27. Which of the following is false concerning viruses? They can have DNA or RNA, but not both, and can be single or double-stranded. Some viruses are enveloped. Some viruses have one or a few enzymes. Viruses can have icosahedral, filamentous, or complex morphology. All of the above are true of viruses. 28. Antibiotics that target cell wall synthesis ultimately cause bacterial cell death as a result of inhibition of protein synthesis, inhibition of molecular transport, decreased synthesis of plasma membrane, osmotic lysis, and cell shrinkage.
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