UAMS Micro Exam 4 UPDATED ACTUAL Questions and CORRECT Answers

UAMS Micro Exam 4 UPDATED ACTUAL
Questions and CORRECT Answers
Which clinical specimen(s) require a cytospin slide? - CORRECT ANSWER - CSF and
normally sterile body fluids


What procedure should be performed when a bacterial antigen test for Group A Strep is
negative? - CORRECT ANSWER - Accept the result and setup a culture for GAS



What is the purpose of transport media? - CORRECT ANSWER - Keeps the organisms
alive
Prevents drying of the specimen
Prevents pH changes in the specimen


Which microscope objective is used to examine and enumerate BACTERIA? - CORRECT
ANSWER - 100x (oil)


Which microscope objective is used to examine and enumerate host cells? - CORRECT
ANSWER - 10x



Which gram stain smear indicates a high quality specimen? - CORRECT ANSWER -
Many PMNs and few/no squamous epithelial cells


Select the media typically used to culture CSF. - CORRECT ANSWER - BAP, CHOC,
Enriched Broth (THIO, BHI)


Select the media typically used to culture Sputum - CORRECT ANSWER - BAP, CHOC,
EMB or MAC

,Select the media typically used to culture Urine - CORRECT ANSWER - BAP,
EMB/MAC


Select the media typically used to culture Wounds. - CORRECT ANSWER - BAP, PEA
or CNA, EMB or MAC, CHOC


Urine stored if they cannot be processed immediately or preserved? - CORRECT
ANSWER - Refrigerate specimen


Stool stored if they cannot be processed immediately or preserved? - CORRECT
ANSWER - Refrigerate specimen


Sputum stored if they cannot be processed immediately or preserved? - CORRECT
ANSWER - Refrigerate specimen


Blood culture stored if they cannot be processed immediately or preserved? - CORRECT
ANSWER - Hold at room temperature


CSF stored if they cannot be processed immediately or preserved? - CORRECT
ANSWER - Hold at room temperature



One organism at 105 CFU/ml - CORRECT ANSWER - Probable UTI



Three organisms in equal numbers - CORRECT ANSWER - Probable contamination



One organism at 105 CFU/ml and one organism at 30 colonies - CORRECT ANSWER -
Probable UTI


Select the organisms that are considered normal flora of humans - CORRECT ANSWER -
Staph aureus, Haemophilus influenzae, Enterococcus faecalis, Corynebacterium species, E. coli,
Streptococcus pneumoniae

, Beta-lactam drugs includes penicillins, penicillinase resistant penicillins, extended-spectum
penicillins, cephems, __________, and __________. - CORRECT ANSWER -
Carbapenems and monobactam


Which drugs are included in the natural penicillins? - CORRECT ANSWER - Penicillin G
&V


Which drugs are included in the penicillinase resistant penicillins? - CORRECT
ANSWER - Methicillin, oxacillin & nafcillin



Which drugs are included in the extended-spectrum penicillins? - CORRECT ANSWER -
Aminopenicillins, carboxypenicillins, & ureidopenicillins


Which drugs are included in the aminopenicillins? - CORRECT ANSWER - Amoxicillin
& ampicillin


Which drugs are included in the carboxypenicillins? - CORRECT ANSWER -
Carbenicillin & ticarcillin


Which drugs are included in the ureidopenicillins - CORRECT ANSWER - Azolocillin &
mezlocillin


The extended-spectrum penicillins differ in their range of activity. Place the following drugs in
order of their activity starting with least effective and ending the most effective: azlocillin,
ticarcillin, ampicillin - CORRECT ANSWER - Least-Ampicillin, ticarcillin, Most-
azlocillin


Which drug is included in the carbapenems? - CORRECT ANSWER - Imipenem



Which drug is included in the monobactam group? - CORRECT ANSWER - Aztreonam