Nurse 5334 Test 1

Mammalian cells do not have a rigid cell wall - True Patients should not take folic acid supplements when prescribed sulfa drugs - False Cephalosporines kill bacteria by weakening the cell wall and promoting bacterial lysis. - True Aminoglycosides inhibit folic acid production by the microbe - False Metronidazole inhibits DNA synthesis in certain microbes - True Many drugs that are prescribed for HIV infection inhibit enzymes needed for viral reproduction - True MRSA, VRE, and C dif are a problem because infection with these microbes is usually fatal - False When patients take antibiotis as prescribed, resistance to antibiotics does not occur - False Bacteria can become resistant to antibiotics by producing enzymes that inactivate the macrobiotic. - True If a bacterium changes its receptors, and antibiotic may not be able to bind to the microbe and exert effects - True The human body can make compounds that prevent an antibiotic from exerting the desired effect - False Some microbes can change so that they stop taking antibiotics into the cell - True The New Delhi Metallo-Beta-Lactamase I (NDM-I) is common in people of Indian or Pakistan descent. - False Broad-spectrum antibiotics kill more competing organisms than do narrow-spectrum drugs and do the most to facilitate emergence of resistance. - True Narrow spectrum antibiotics tend to promote overgrowth of normal flora that possess mechanism for resistance. - False Infants do not have a well developed BBB and drugs can enter the CNS more readily that in a child or adult. - False Antibiotics have difficulty penetrating an abscess - True The American Heart Association has recently stressed that prophylactic use of antibiotics is more important than recently thought. - False Antibiotics that are added to animal feed can cause humans to develop a resistance to those antibiotics. - False A pt is admitted to a medical unit and prescribed intravenous ampicillin/subactam after a specimen was sent for culture and sensitivity from the ED. The nurse knows the priority reason for notifying the prescriber of culture results as soon as they are available is that ampicillin/sulbactam... - Unasyn is a broad spectrum antibiotic. Narrow-spectrum antibiotics are active against only a few species of microorganisms. In contrast, broad spectrum antibiotics are active against a wide variety of microbes. Narrow spectrum drugs are generally preferred to broad spectrum drugs. Which patient would most likely have resistance to antibiotic therapy? - An adult who developed a wound infection in the hospital. Which infection would be classified as a suprainfection? - Monilial vaginal infection that develops during antibiotic therapy. Microscopic exam of gram stain preparation has the advantage of ,,, - providing rapid results and being a more simple test. The RN has consulted the prescriber because a pt reports an allergy to the prescribed penicillin antibiotic. The prescriber is aware of the allergy but the pt is experiencing a life-threatening infection and no other suitable antibiotic is available. What is the priority nursing action? - As a rule, patients with a hx of allergy to penicillin should not receive them again. The exception is the tx of a life threatening inf for which no suitable alternative is available. For emergency treatment, people typically receive epinephrine; antihistamines, and corticosteroids may also be ordered. It would be a priority to report which result if a pt is prescribed tetracycline? - Positive hcg. Tetracycline is category D What test results should the nurse monitor when caring for a patient who is at risk for glucose 6 phoshate dehydrogenase deficiency who is prescribed a sulfa antibiotic? - Hgb and hct In most infections, the level of antibiotic as the site of infection needs to be ... - 4-8 times the minimum inhibitory concentration (MIC) Which are valid reasons for prescribing 2 different antibiotics? - 1. case of inf with Mycobacterium tuberculosis 2. Results of C&S indicate multiple organisms sensitive to different durgs are present 3. Severe inf in the immunocompromised pt. Which is an acceptable reason for giving antibiotic prophylaxis? - Before cardiac surgery