Exam III Flashcards
(49 cards)
Properly labeled specimen collections include
- Name
- Patient identification number
- Source of the specimen
- Date and time of collection
- Special instructions/comments
Special instructions/comments
can include
Precautions e.g. Smallpox, anthrax, etc.
Travel to certain endemic areas
Threat Agents - Contagious
- Bacillus anthracis *Brucella species
- Burkholderia pseudomallei *Francisella tularensis
- Yersinia pestis *Blastomyces *Hystoplasma
Require special culture media
- Bordetella pertussis *Clostridium species
- Corynebacterium diphtheriae* *E. coli O157:H7
- Legionella pneumophila *Vibrio cholerae
- Yersinia enterocolitica
Greatest likelihood of recovering the suspected agent
- Viruses during acute phase
- Bacteria before antibiotics started
- Parasites/Fungi no special guidance
Tissue or fluid specimen guideline
aspirate is superior to a swab for pathogen recovery
If Delays required for
Urine, sputum, respiratory specimens, and stool
Refrigerated
If Delays required for Cerebrospinal fluid (CSF), body fluids, and blood culture
Room Temperature
The following specimen require?
Viruses – viral transport media (VTM)
Stool – Cary-Blair media
Stool parasites – formalin and polyvinyl alcohol (PVA)
A tranport Media
Diseases that require reporting to governement agency
Botulism Brucellosis Anthrax Tularemia Rabies Plague
Bacteremia, endocarditis, sepsis require____ specimen collection Bottles prior to _____
2;Antibiotics
(2 or more) per episode
1 “set” = 1 aerobic and 1 anaerobic bottle
Different sites/time
No more than 4 total sets within 24 hrs
Blood Culture
Pediatric Patients blood culture require
1 Bottle
Sufficient blood volume (fill line)
Adults_____ ml, Infants/children _____ml
20-30ml; 1-5ml
Growth of the same organism in repeated cultures
indicates
True Positive
Growth of different organisms in different culture bottles indicates
Probable contamination, bowel spillage
if the following are present; Coag. NEG. Staphylococci, Corynebacterium, Bacillus, Propionibacterium, indicates
Growth of normal skin flora – likely contamination
Organisms such as viridans streptococci or enterococci
Possible endocarditis – associated with low grade fevers
Nasal swabs are used to identify carriers of
methicillin resistant S. aureus
Throat swab primarily for _________ but suspect?
Group A streptococcal pharyngitis
Neisseria, Bordetella, Corynebacterium,
Lower respiratory Tract specimens
Bronchoscopy Specimens and Sputum and Tracheal Aspirates
specimens for diagnosis of bacterial pneumonia in ventilated patients and opporttunistic pathogens
Bronchoalveolar lavage fluid and protected brush
Sputum (expectorated or induced) and tracheal aspirate for suspected
Pneumonia
Urinary Tract SPecimens
UTI, Pylonephritis, Cystitis,
