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MTCE 2
MTCE 2
51
Medical
Graduate
06/02/2011

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Cards

Term
Turbidimetry, and two problems
Definition
measurement of how much light is blocked by particles in solution. The size of particles in the standard and those in the sample must be very similar, and any settling/aggregation can yield inaccurate readings
Term
Flame emission photometry
Definition
determining the amount and type of metal in a sample by burning it and measuring the intensity and wavelength of energy emission
Term
mass spec
Definition
back up for gas-liquid chromatography
Term
scurvy
Definition
vitamin C deficiency
Term
Beriberi
Definition
Thiamin (B1) deficiency
Term
Vitamin K
Definition
component of prothrombin: necessary for clotting
Term
PT/PTT
Definition
test of extrinsic/intrinsic coagulation systems
Term
Orthostatic proteinuria
Definition
related party(esp. albumin) found in the excrement in excess in daytime, and at normal levels at night
Term
Addis count procedure
Definition
12 hour urine collection, preservation through formalin addition, centrifugation, neubauer blood counter
Term
Benedict's Test
Definition
tests for reducing agents in the urine by adding copper sulfate, sodium carbonate, and sodium citrate, and monitoring the presence and color of the precipitate, if yellow, orange, or red, it has one.
Term
lecithin/sphingomyelin ratio
Definition
amniocentesis: surfactant and removed and the ratio is determined. If less than 2, lungs are immature (wet). Test helps predict/prevent respiratory distress after birth.
Term
creatinine/urea concentration in amniotic fluid
Definition
amniocentisis gathers amniotic fluid, if too high, the concentration of creatinine and urea will be obviously high, and is indicative of contamination of the amniotic fluid with maternal urine.
Term
general color and clarity of normal semen
Definition
grayish-white and translucent
Term
pH and viscosity of normal semen
Definition
7.3-7.8 and 1 on a scale of 1-4
Term
normal volume of ejaculate
Definition
2-5 mL
Term
timeframe of coagulation and liquefaction of normal semen
Definition
30 minutes
Term
motility percentage of normal semen
Definition
60+%
Term
forward progression percentage of normal sperm
Definition
50+%
Term
Normal sperm count
Definition
40 million
Term
normal percentage of normal morphology in sperm
Definition
30+%
Term
HCG hemaglutination inhibition test
Definition
anti-HCG serum is added to patient's urine, after which protein-coated RBCs are added. If the patient is pregnant, the serum will not react to the RBCs, causing them to form a ring around the urine. If not, the serum will react, and the RBCs will be uniformly mixed with the urine.
Term
Immunoglobulin
Definition
glycoprotein which acts as an antibody, classified by the type of heavy chain: Alpha, Delta, Epsilon, Gamma, and Mu.
Term
IgA main function
Definition
protect against ingested antigens, as well as those which try to attach to the skin and mucous membranes
Term
IgD location
Definition
B cells/lymphocytes
Term
IgE
Definition
play a part in allergic reactions (least common)
Term
IgM
Definition
stimulates the production of IgG and is among the first to respond to an antigen
Term
Human Leukocyte Antigens (HLAs)
Definition
part of the MHC on chromosome 6, code for surface proteins in nucleated cells making them very important for organ transplant. HLA-A, B, and C are determinable through the serum, but a mixed lymphocyte culture is needed to determine type D
Term
Bruton's disease
Definition
lacks all major immunoglobulins. Determined through amniocentisis, lack of IgG peak. IgG injections can reduce mortality and morbidity.
Term
apolipoprotein
Definition
combines with lipid to form the logical compound. types a-e. determine quantity: radioimmunoassay, immunonephelometry, enzyme-linked immunoassay, electroimmunoassay, radial immunodiffusion, & fluorescence immunoassay.
Term
biuret procedure
Definition
determining the relative amount of protein in a sample by reacting its peptide bonds with copper ions. There must be a minimum of two peptide bonds for any reaction to be seen, so there must be at least three peptides in the protein. The more protein there is, the more intense the color of the reaction will be.
Term
AFP, alpha-fetoprotein
Definition
secreted by the apt liver. In maternal blood, high levels can be indicative of neural or renal problems, or twins. Low levels can be indicative of Down syndrome. Ultrasound and amniocentisis can help to confirm any findings
Term
albumin
Definition
most abundant (55%) protein in human serum: essential to osmoregulation and fatty acid transport
Term
Kjeldahl technique
Definition
reference method for quantifying the total protein found in serum: digests peptide bonds, turning nitrogen into ammonium ions which can be titrated as ammonia; or can be mixed with Nessler's reagent and read spectrophotometrically. Cumbersome in practice.
Term
Donath-Landsteiner test
Definition
used to determine paroxysmal cold hemoglobinuria. patient serum @ 4C moved to 37C compared with control: N/N = (-); H/N = (+); H/H = invalid
Term
Ten degree Celsius increase in temperature's effect on enzymatic activity
Definition
two-fold increase
Term
prostaglandins
Definition
hormone-like molecules derived from essential fatty acids. Play a part in uterine contraction, platelet aggregation inhibition, infection protection, metabolism regulation, and blood pressure control.
Term
nonesterified fatty acids
Definition
"free" capable of binding to other molecules, otherwise carried by albumin, determined through titration with thymol blue or sodium hydroxide from heparinized plasma or a serum.
Term
creatinine
Definition
free version of a related molecule having undergone a spontaneous irreversible reaction, waste
Term
Jaffe reaction
Definition
creatinine reacts with an alkaline picrate solution, turns bright orange. For specificity, creatinine is drawn out with Lloyd's reagent before-hand
Term
Creatinine clearance
Definition
infantile: UV(1.73)/PA; adult: UV/P
Term
Uric acid quantification
Definition
related enzyme is added to a sample, and UV absorbance is monitored b/t 290-293 nm. The difference between initial and final absorbances will be directly proportional to the amount of related substance in the sample.
Term
Gilbert's Syndrome
Definition
abnormal protein essential in bilirubin disposal: high levels of unconjugated bilirubin in the liver, and slightly higher levels in the blood. Jaundice. Harmless.
Term
bilirubin
Definition
red bile formed from heme: one heme is retrieved, iron is then added, this is then reduced.
Term
Bilirubin oxidase
Definition
action hereof is monitored, as it is characterized by a decrease in absorbance from 405-460 nm
Term
bilirubinometer
Definition
used to read the related concentration at 454 nm, used as a direct spectrophotometer assay
Term
Jendrassik-Grof
Definition
preferred method of unconjugated serum bilirubin concentration determination: through binding to diazo, accelerated by caffeine-sodium benzoate mixture
Term
malloy-evelyn
Definition
dissolved unconjugated bilirubin in alcohol, react with diazotized sulfanilic acid
Term
Dubin-Johnson Syndrome
Definition
transport of conjugated bilirubin is defective leading to increased levels of it in both the blood in urine.
Term
Crigler-Najjar Syndrome
Definition
UDG transferase deficiency, leading to a high level of unconjugated bilirubin
Term
Jaundice
Definition
bilirubin levels are greater than 2.5 mg/dL
Term
IgG
Definition
the most common and most abundant, fighting many antigens in the blood and lymph
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