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Madison
Med Lab Quiz Chapters 15&17
| Question | Answer |
|---|---|
| Host microbiota | Interact with the immune system |
| The term probiotic refers to | Bacteria that provide health benefits |
| Areas of the body or body fluids that should lack microbiota are | All of above |
| The term pathogen refers to | Disease causing microorganisms |
| An opportunities microorganism can cause infections | In a person with an intact immune system |
| Gram stains is based on the chemical composition of | A bacterial cell wall |
| In the microorganisms Streptococcus pyrogens and the term streptococcus designates the | Genus |
| Biosafety Level 2 agents | Require laboratory personnel to have specific training in handling pathogenic and potentially lethal agents |
| Microbiology laboratory acquired infections from an aerosol | Can occur from an accidental needle puncture wound |
| Prevention of aerosolization can be best be accomplished by | Using a biological safety cabinet when working with specimens |
| Sterilization refers to | Process of killing or destroying all microorganisms including bacterial spores |
| If specimen processing for culture or other testing is delayed and which method provides a safe method for temporary storage of most pathogenic organisms or specimens until they can be cultured or tested | Refrigeration at 4 c to 6 c |
| A colony is | A growth of bacteria that results from a single bacterium |
| Media that contain dyes and antibiotics or the chemical compounds that inhibit certain bacteria while allowing others to grow are called | Selective media |
| Media that contain factors such as carbohydrates and indicators that improve the identification of colonies of particular organisms with the distinctive characteristics are called | Differential media |
| Media that are used to permit the normal rate I=of growth of most non-fastidious organisms are called | Supportive media |
| Which or the falling is not a selective medium | sheep blood agar |
| Which of the following is used to promote the growth of gram negative organisms while inhibiting the growth of gram positive organisms | Sheep, blood agar |
| Which of the following is used to promote the growth of neisseria gomorrhoeae and neisseria meningitis | Thayer Martin Agar |
| Use of triple sugar iron agar kligler iron agar can identify all of the following characteristics of members of the order enterbacterales common enteric and intestinal and pathogens except which one | Ability to produce ammonia |
| Pathogenic Shigella spp characteristically are | Non-lactose fermenters |
| MacConkey agar is quantitatively inoculated with urine specimen and incubated appropriately. Results are 100,000 CFU/mg\L urine of gram negative lactose fermenting organisms. which of the following would be statistically the most likely organism to cause | escherichia coli |
| What color are gram negative bacteria after the decolorization step in the gram stain method | Colorless |
| Which of the following organisms can be recognized by its spreading growth appearance on sheep blood agar | proteus spp |
| Results of a urine culture are significantly more valuable for the diagnosis of a urinary infection when in conjunction with | leukocytes particularly polymorphonuclear neutrophils |
| In culturing a throat specimen for group A-B- hemolytic streptococci testing which of the following media is preferred | sheep blood agar |
| What is the purpose of making cuts in he sheep blood agar when a throat culture is plated | to note the morphologic appearance of the colony growth |
| In some people untreated appearance of the colony growth group A-B hemolytic streptococci can eventually result in | rheumatic fever |
| In observing a sheep blood agar plate inoculated with a sputum sample showing the presence of alpha or green hemolysis after incubation what test can be done to determine whether the organism is viridian streptococci part of the normal respiratory microbi | bile solubility test then, which most S pneumonia colonies would be dissolved by the regnant use in inhibited by and optochin disk |
| In identifying the presence of most group A-B hemolytic streptococci, versus those that are non-group A, which of the following test can be done? | PYR test, in which most group A B- hemolytic streptococci colonies would produce a bright red color after edition of the PYR reagent to the filter paper |
| Urogenital swabs to be cultured for gonococci should be played it onto culture and media. | Immediately at the bedside, preferably |
| What are the requirements for collection of an appropriate expect them in for the detection of chlamydia | First year and a large swipe to remove any secret Titian's present and then you the second swab to collect the specimen |
| What are the requirements for collection of an appropriate expect him in for the optimal detection of Trichomonas vaginalis | Cleanse the site carefully before any collection is done |
| The work up for a pediatric patient with diarrhea who is otherwise healthy should include | Both b and c b is bacterial sore culture of sore multiplex, PCR panel for common bacterial, viral in parasitic agent c is parasite panel by PCR for Giaridia duodenalis, cryptosporidium, cyclospora and dientamoeba |
| A benefit of the matrix assistant, laser, distribution isolation time of flight mass spectrometer MALDITOF in Enteric disease is | Positive pathogen identification, after only 18 to 24 hours |
| Progressive syndrome, septic shock, can occur in the blood because of release of | endotoxins |
| Wound infections can be classified into which three major areas | superficial, subcutaneous, and deep wounds |
| The lowest concentration of Anna micro bowl agent that will visibly inhibit. The growth of the organism being tested, is known as the. | Minimum inhibitory concentration MIC |
| When antibiotic therapy is needed, spectrum means for a culture in organism identification should be collected | Before the antibiotics have been administered |
| If the antibiotics does not inhibit the growth of an organism, the organism is said to be | Resistant |
| Every lavatory handling biological material must | Have a biological safety cabinet for handling, hazardous, specimens and organisms |
| The most sensitive staining method for acid fast bacilli is | Fluorochrome |
| A benefit of the matrix assistant, laser, distribution isolation time of flight mass spectrometer MALDITOF in Enteric disease is | Positive pathogen identification, after only 18 to 24 hours |
| Wound infections can be classified into which three major areas | superficial, subcutaneous, and deep wounds |
| If the antibiotics does not inhibit the growth of an organism, the organism is said to be | Resistant |
| Which of the following antimicrobial agents is used to inhibit, nonpathogenic funky from growing in lydia that have been designed to promote the growth of pathogenic fungi | Cyclohexmide |
| The best method for finding pinworm organisms in children is | Cellophane tap collection |
| Collection of TECO samples for identification of intestinal parasite should be done | Before radiologist said he is using Barium Sulfate have been done |
| Viruses differ from other types of microorganisms because they | Both a and B a is cannot replicate outside of another living host b is rely on her cell machine and Mary to reproduce the viral particles for propagation transmission and infection |
| Automated microbiology systems have generally been designed to replace | Manual procedures that are repetitive in that are performed daily on a large number of specimens |
| Transfusion medicine is defined as | The procedures involved in collecting, storing, processing, and distributing blood and dispensing blood components to patients |
| immunohematology is defined as | The techniques and procedures involved in the study of the immunologic responses of blood (RBCs) |
| All the following are the benefits of and reasons for blood transfusion except | Replace antibiotics in treatment of patients with granulocytic infections |
| Fresh frozen plasma is characterized by all of the following statements except | A source of of all coagulation factors |
| Packed red blood cells are characterized by all of the following except | Can be used exclusively in cases of massive bleeding without any other fluids |
| Platelet concentrates are characterized by all of the following except | never need to be crossmatched |
| All of the following tests are required in the screening of potential blood donors for transfusion-transmitted disease except | Epstein-Barr virus |
| Autologous donation is characterized by all of the following characteristics except | having a longer self life than unknown donor blood |
| genotype is the | Actual genetic makeup; may not be evident by direct tests |
| immune antibody is the | unexpected antibodies that result from result from specific antigenic stimulation |
| phenotype is the | RBC (Blood) type, as determined by direct testing |
| The phenotype of genotype AO is | A |
| The phenotype pf genotype BO is | B |
| The phenotype of genotype BB is | B |
| The phenotype of genotype AB is | AB |
| Patients are generally described as Rh positive or Rh negative based on the presence of which of the following antigens on the RBCs | D |
| Other bloods group systems include | All of the above |
| The indirect antiglobulin testis performed | On serum suspected of containing antibodies |
| The direct antiglobulin test (DAT) is performed | On RBC suspected of bring coated with antibody |
| When blood is to be transferred to a patient, the most important question is | Does the patients serum contain an antibody against the donors RBCs |
| If a patient is group a what is the preferred blood group of transfusion? | A |
| Cross matching of the donors RBC S, with the patient serum could demonstrate | Major incompatibility between patient and donor |
| Testing of the patient serum with a panel of group oh cells for unexpected antibodies can demonstrates | Patient antibodies to various non-self antigens |
| Compatibility testing can help to detect | Anxiety |
| Which of the following is not generally characterized as transfusion reaction | All of the above |
| The most important reason for the decrease in the number of cases of hematologic disease of the fetus and newborn HDFN is | Use of our H immune globulin |
| HDFN does not usually occur in the first pregnancy. If the mother is de negative in the baby is deposited which of the following is the most likely reason for this | The greatest exposure of the mother to the babies, RBCS with D antigens is during labor and delivery |
| If 50 ML of fetal red blood cells are estimated to be in the internal circulation how many vitals of RHLG will be required | Three |
| The automated blood banking testing format of the fire, red solid screen to test system uses | Micro, well plate, pre-coated with blood grouping, monoclonal antibodies |
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