aabbasicquck Flashcards
Deca:Deci:
Deca: 10^1Deci: 10^-1Centi: 10^-2Milli: 10^-3
LDL calc
TC - (TG/5 + HDL)TC= cholesterol
Centrifuge: head/rotor, carriers/shieldsRCF: relative centrifugal force calccentrifugar force depends on three factors…recommended RCF and rpm/time
1.118 x 10^-5 x r x rpm^2mass, speed, radius1.118x10-5 is the angular velocityAAB study guide says 1.18RCF 1-1200 or 3500rpm 10-15min
Horizontal/Swinging:fixed angle good to…microcentrifuge for smaller than…ultracentrifuge rpm, for….
Horizontal/Swinging: horizontal when spinningfixed angle good to…sediment small particles fastermicrocentrifuge for smaller than…<2mlultracentrifuge rpm, for….150,000rpm, chylomicrons
Pipettes:Semiautomatic: recalibrate…/yr with…Most accurate pipette, has accuracy of…Pipette that is rinsed after 1st liquid drains….Pipette that drains by gravity, tip to side….Pippette w/2 frosted bands……
Pipettes:Semiautomatic: recalibrate…/yr with…4x/yr, gravimetric(wt=vol, water) or volumetric(dye into water, spectropho)Most accurate pipette, has accuracy of…volumetric/transfer 1:1000Pipette that is rinsed after 1st liquid drains….TC to containPipette that drains by gravity, tip to side….TD to deliverPippette w/2 frosted bands……blow out remaining drop
Inspected etc…Centrifuges for time/speed w/NIST…automatic pipetters…..BSA hoods, thermometers w/NIST….CLIA lab inspections….
Inspected etc…Centrifuges for time/speed w/NIST…6 mths-use daily, need to do more oftenautomatic pipettes…quarterly, every 4 mthsBSA hoods, thermometers w/NIST….yearlyCLIA lab inspections….2yrs
Microscopes…best forBrightfield…Darkfield…Electron…Fluorescent…Phase contrast…Polarized…Diff. interference contrast/DIC….
Microscopes…best forBrightfield…white light, low contrast of bioDarkfield…collect scattered light, spirocheteElectron…electrons,enlarged image, tumor markers, tissueFluorescent…high enery emits lower, ANAPhase contrast…phase shifts, diff in refractive index/contrast, manual PLT ctsPolarized…transmitted polarized light, crystalsDiff. interference contrast/DIC….recominbation of light, 3D
Temp calculations…C to F: 5/9 x (F-32)F to C: (9/5) + 32C to K: C+27395F=C95C=F
95F=35C95C=203F
M:E ratiowhat is counted as myeloid, what isn’twhat is examples of erythroid
M:EM=myeloid, blast count as myeloid-not lymphs/monosE=normo/erthroblast/rubricytes
Molarity calc…Normality calc…
Molary= gmv/L, want mol/LNormality= 1 Eq(each H)/gmw
Osmality NV, calcOsmolar gap…
Osmality 275-295, 1.86Na+Glu/18+BUN/2.8Gap is measured-calculated
SD is the…CV is a measure of…calc…acceptable CV…QC is a measure of…
SD is the square root of varianceCV measures precisionSD/mean x100, <5% acceptableQC measures reliability
Confidence intervals is probability of estimated range, degree of uncertainty1SD=2SD=3SD=acceptable SD for lab/ranges CTRLs are in….
Confidence intervals is probability of estimated range, degree of uncertainty1SD= 68%2SD= 95%3SD= 99%acceptable SD for lab/ranges CTRLs are in…2SD-to find 1SD you find mean, diff on each side is 2SD/2
pH, Henderson equa…normal pH…bicarb:acid…
pH= pka + log (salt/acid) or (A/HA)normal pH 7.4bicard:acid 20:1
Beers law: -concentration=energy absorbed A=abc-transmitted in inverse=A=2-log%TConcentration/absorbance calc…
Concen unk/Con Std = Abs unk/Abs std
Who catergorizes/grades tests based on complexicity…Who determines if test can be waived…Most lab complexicity…PPM is what complexcity…High complexcity tests….
Who catergorizes/grades tests based on complexicity…FDAWho determines if test can be waived…HHSMost lab complexicity…moderatePPM is what complexcity…moderateHigh complexcity tests….-modified FDA cleared-LDT(lab developed)-cytology-serogrouping/gel immuno/electro/flow-pap
Proficiency testing:Required by…up to…/yr…Not required for…These two can inspect…This dept approves PT program…Keep copy of PT for…Unsuccessful PT…-common causes of failure….Alternate PT testing….
Proficiency testing:Required by CMS under CLIA, 3x/yrNot required for…waivedThese two can inspect…CMS, HHSThis dept approves PT program…HHSKeep copy of PT for…2yrs (as most records)Unsuccessful PT…-SAME analyte in 2 CONSECUTIVE testing events or 2/3 testing events-common causes of failure: clerical, instrument method/codes, calibration bias, late turn inAlternate PT testing….-SPLIT sample testing w/ref/other lab or established in house-clin validation by chart review-participate in ungraded/educational PT program
Most errors occur in …and….analytical areasPRE: %, if oral need written w/in…Analytical: %, most common errorPOST: % most common errorKeep records for…BB for…Pathology for…
Most errors occur in pre and post phasePRE: 46%, oral ok/written w/in 30 days-Joint commision national PT safety std=need to PT idsAnalytical: 8%, specimen integrityPOST: 47%, clerical errorrecords 2yrs, BB 5yrs/products 6mths after expire/Pathology 10yrs
Warning error…what to do if 1CTRL is out…Random errors due to…causesSystemic erros due to these 3…-name of gradual loss/drift from mean/causes-name of abrupt change/causes
1st #=how many out consecutively 2nd #=SDWarning error…what to do if 1CTRL is out…-1-2S: repeat same CTRLRandom errors due to… 1-3SD, R-4S-unpredictable, preventable-pipetitng, electronics, HIL-R4S= 2 concensutive outside 4SDSystemic erros due to these 3…-2-2S, 4-1S, 10x-name of gradual loss/drift from mean/causes: deterioation, accumulation, aging-name of abrupt change/causes: reagent/lot change, maintenance, temp
Steps in out of range CTRLS…1.)if only 1-2S…2)If still out…3.)still out…4.)5.)6.)
Steps in out of range CTRLS…1.)if only 1-2S rerun same CTRL 1x2)New vial CTRL/new lot3.)reagents, maintenance, specimen4.)recalibrate/redo ctrls5.)assistance, document corrective action
Safety training/Blood borne training/Chenmical hygiene/TB plan done…-safety records kept…DOT training w/in…every….
Safety/blood borne/chemical hygiene 1yr-safety records kept 3yrsDOT w/in 90 days, 3 yrs
Hazard Communication Std requires….on labels to alert…examples…8
requires pictograms on labels to alert chemical hazards-Health-Environment-Skull crossbone-gas cylinder-flame over circle-exploding bomb-flame-exclamation mark
Health pictogram/Human: takes time, toxicity, cancer causing…6
Health: toxicity-carcinogen, mutangenicity-reproductive/organ toxicity-respiration/aspiraton toxicity
Corrosion/hand-item: 4
Corrosion:-skin corrosion/burns-eye damage-metal corrosion
Flame over circle: 1
flame over circle=oxidizer
Skull crossbone: 1
Skull cross bone-acute toxicity/fatal
exploding bomb: 3
exploding bomb-explosives-self reactive/organic peroxides
exclamation mark: 6not as toxic acute and often irritants
exclamation mark:-skin/eye/respiratory irritant-skin sensitizer-acute toxicity-narcotic affect-ozone layer
Environment/fish:1
aquatic toxicity
Flame: heat/flame 6
Flame/heat:-flammables, pyrophorics-emits flammable gas-self heating, self reactives-organic peroxides
TB plan reviewed…Class…BSC…Plan to protect employees from heath hazards with hazardous chemicals…Std related to blood/BF and contaminated items…Plan that lays out potential risks, measures taken if exposed to bloodborne pathogens….Universal precautions:-all PTs/blood/BF/tissues/needles potentially infectious and contaminated with these 3…-examples of BF that can spread these…Primary mode of infection throgh these 2..Post exposure testing…save blood for…
TB plan review anually, Class 2 BSCPlan to protect employees from heath hazards with hazardous chemicals…-Chemical hygiene planStd related to blood/BF and contaminated items…Bloodborn pathogen stdPlan that lays out potential risks, measures taken if exposed to bloodborne pathogens….exposure planUniversal precautions: HIV, HBV, HCV-blood, semen/vaginal, CSF/synovial/serous, amniotic, salive in dental, unfixed tissue/organsprimary mode:-puncture/broken skin, contact-mucous membranePost exposure testing:-3,6,12mths-save blood 90days
HIV:-dominant one, grps;-slower, grps:-incubation average:-AIDs CD4 <, TH/Tctyo, category:-Bacteria:-Fungal:-Viral:-Parasites:-Testing: -Treatment:
HIV:-dominant one, grps: HIV1, M,N,O-slower, grps: HIV2 A,B-incubation average: 18mths-AIDs CD4 <, TH/Tctyo: <200, 1:2, 0.5, cat3-Bacteria: mycobacterium-Fungal: crypto neo, canida-Viral: HBV, EBV, CMV, HSV-Parasites: Pneumocystis, Crytpsporidium, Toxcoplasma-Testing: Qual/ELISA, Quant/RNA NAT-Treatment: HAART, AZT
How many classes of Biosafety Cabinet(BSC)..One lab use…Certified…and then…
There are 3 but 2 has two subclassesClass 2aCertified upon installation, then annually
Class BSC completely closed, neg pressure, most protection-air coming in is filter sterlized, rubber gloves
Class 3
Class BSC that only sterilizes air being exhausted, ventilated outside, negative pressure
Class 1
Class BSC that most labs use:-self contained, laminar flow, sash-air exhausted and over material sterilized-air recirculated thru HEPA
Class 2a
Class BSC used for radioisotopes, toxic chemicals, carcinogens
Class 2b
How many BSL biosafety level are there…One that most std micro labs use..
4BSL 1
BSL due to dangerous, aerosol trasmitted, fetal, no vaccine/treatment-all precautions of other BSL plus clothing change/shower/decontamination-most organisms are…
BSL 4ebola, lassa, marburg viruses
BSL for indigenous, serious/letal thru inhalation-controlled access, decontamination-example microbes
BSL 3-TB, Brucella, Y.petis, antracis, C.immitis
BSL most used in std micro labs:-not usually cause of disease-2 examples of microbes
BSL 1B.subtilis(dry heat QC), E.coli
BSL used when theres risk of sharp injury, ingesting, mucous membrane-biohazard signs, sharps precautions,manual-example microbes
BSL 2-S.aurea, Ecoli H157, Kpneumo, HBV/HIV
Biosafety levelsBSL 1:-most common in lab, not likey issue-B.subtilis, E.coliBSL 2:-sharp/ingest/mucous route -warning signs/sharps, manual-Common pathogens: S.aureus, EcoliH157, Kpneumo, HBV/HIVBSL 3:-indigenous, serious/lethal, inhale-controlled access, decontamination-TB, Brucella, Y.petis, anthracis, C.immitisBSL 4: -most letal, no vaccine/treatment, aerosol-virus: eboal, lassa, marburg
.
Chlorine, propane, nitrous oxide, CO2 all examples of…
liquified compressed gas
oxygen, nitrogen, helium, argon all examples of
nonliquified compressed gas
acetylene example of
dissolved compressed gas
Flashpt F/C..lowest temp a vapor of flammable liquid can be ignited into airexamples…keep in…
<100F/37.8Cacetone, ethanol, methanol, xyleneflammable liquid safety cabinet
Environmental CTRLS:safety color coding…all usually color with black lettersRed code for, examples…Yellow code, example…Orange code, examples….
Environmental CTRLS:safety color coding…Red code for, examples…-fire, danger, stop: fire pull, biomed)Yellow code, example…-caution: radiationOrange code, examples….-warning: biohazard, infectious agent(fluoursecent orange)
NFPA color coded labels recommended by OSHA..red diamond:yellow diamond:blue diamond:white diamond:
NFPA color coded labels recommended by OSHA..red diamond: fire-0=won’t burn, 4=flashpt <73Fyellow diamond: reactivity-0=stable, 4=detonateblue diamond: health-0=normal, 4=deathwhite diamond: specific-ACID, ALK, COR, OXY-radioactive, use no water
Class Fires/Extinguishers how many classes
4, A-D
Class fire/extinguisher with combustible metals…examples of metals..
Class D combustible metalsMg,Li,Na, Kyellow decagon, no #
Class fire/extinguisher with energized electrical equipment…examples..
Class C energized electrical equipanalyzers, wiring, outletsblue circlen no #
Class fire/extinguisher with ordinary combustible..examples..
Class Apaper,wood,cloth, some rubber plasticgreen triangle, # is amt of water
Class fire/extinguisher with flammable/combustible liquids..examples..
Class Bgases, greases, some rubber/plasticacetone,ethanol,methanol, xylenered square, # is sq ft can extinguish
Fire/extinguisher acronyms…Fire acronym…Extinguisher acronym…
Fire: RACE to the fire-R: rescule-A: alarm, call operator-C: contain-E: extinguish or evacateExtinguisher: PASS the extinguisher-Pull the pin-Aim at base-Squeeze -Sweep side to side
Regulates disposal of waste…DOT HMR used in most labs…
EPADOT HMR: cat B-not in form cause harm/fatal, triple packing
Federal law defines min wage, OT, how to be paid…-exempt versus nonexempt:Law prohibits discriimination, Title 7:Law that prohibits discriminatin w/disabilities:Law that allow for continued health insurance when retire/resign/laid off/chage to PT…Law that protects health insurance when changing jobs and protects health info…
Federal law defines min wage, OT, how to be paid…Fair Labor Std Act-exempt: salary, nonexempt hourlyLaw prohibit discriimination,Title 7: Civil rightLaw that prohibits discriminatin w/disabilities: Americeans Disabilities actLaw that allow for continued health insurance when retire/resign/laid off/chage to PT…COBRA 18/36mthsLaw that protects health insurance when changing jobs and protects health info…-Health Insurance Portability and Accountablity Act