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  • 問題数 100 • 1/23/2024

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    問題一覧

  • 1

    Which of the following Westgard rules detects random error?

    1:3s

  • 2

    Hazards in the laboratory may either be electrical, radiation, hazards from working with cryogenic materials and ergonomics. One of the items listed below can cause an ergonomic hazard:

    Repetitive pounding actions

  • 3

    What should be done if a pair of used gloves is accidentally thrown into a garbage Bin containing non-infectious wastes?

    Treat the whole garbage/waste as infectious and should be handled accordingly

  • 4

    Which among the Westgard multirule is considered a systematic error

    4:1s

  • 5

    What do we call the straw-colored fluid that is observed after sometime when the sample is collected using sodium oxalate.

    plasma

  • 6

    Which of the following is commonly encountered xanthine that could potentially interfere with the determination of theophylline?

    caffeine

  • 7

    What type of error in levy jenning day 19-28 what error

    shift

  • 8

    Which of the following compounds is NOT a precursor of estrogen?

    aldosterone

  • 9

    Blood glucose was performed on a patient with the data below.What will be the glucose concentration in SI units? Concentration of the standard= 100mg/dL Absorbance of the unknown= 0.52 Absorbance of the standard= 0.32

    8.93 mmol/L

  • 10

    When theJaffe reaction is employed as a kinetic assay to quantify serum creatinine, which of the following is used in the analysis?

    serum sample used directly

  • 11

    When plasma is used for determination of sodium,what anticoagulant can give a positive interference to the test?

    versene

  • 12

    What will increase if there’s repetitive fist clenching?

    potassium

  • 13

    It is important to know before collection if a patient has excessive muscle exertion. What would be the effect of exercise

    subsequent fall and increase of fatty acid

  • 14

    What non-invasive method is used to monitor the blood gas levels in newborns?

    transcutaneous monitoring

  • 15

    A 26 year old woman in her 26 weeks of pregnancy came to the lab to undergo 50g OGTT. Glucose = 150 mg/dl in 1st hour What will be the possible diagnosis when the following results are obtained?

    confirmed Dm, should be tested for 3hrs OGTT

  • 16

    The following statements DOES NOT describe insulin

    C-peptide is the active form

  • 17

    What is the effect of epinephrine that can affect physical and emotional stress

    Increased glucose leve

  • 18

    Which of the following is measured to correlate glucose concentration in hexokinase method?

    NAD/NADH

  • 19

    Which of the following should be strictly following when performing venipuncture? 1. Always be aware that blood borne infections are acquired from needle stick 2. 3. Enter the skin w/ the needle at approx 15° angle with the bevel of the needle up 4. It is acceptable to withdraw the needle without removing the tourniquet

    1,3

  • 20

    What compound is crucial intermediate to metabolism of TAGs to form energy?

    Acetyl-CoA

  • 21

    Lipid substance most associated with membrane structure of nerve tissues

    Sphingolipids

  • 22

    Lipoprotein that travels with B-globulins during electrophoresis

    LDL

  • 23

    Lipoprotein that transport cholesterol to other tissues for membrane and steroid synthesis

    LDL

  • 24

    Lipoprotein that possess Apo b 48

    Chylomicrons

  • 25

    Compute for LDL cholesterol Total Cholesterol 7,85 Triglycerides 5,25 HDL Cholesterol 1,45

    4.55

  • 26

    What is the basis of Kjeldahl technique for determination of serum total protein

    Quantification of nitrogen content of protein

  • 27

    Lipids found in neuron

    Sphingolipids

  • 28

    At ph 8.6 proteins are negatively charged and migrate towards

    Anode

  • 29

    A 3 week pregnant female was used to the hospital with a diagnosis of possible liver disease. Which of the following enzyme determination would be least useful in confirming the diagnosis?

    ALP

  • 30

    Protein spike

    Monoclonal

  • 31

    Which of the following is an example of a long-acting barbitruate?

    Phenobarbital

  • 32

    What is the indirect method of measuring urea nitrogen?

    Amount of ammonium ions liberated

  • 33

    Which of the electrode below is current producing (amperometric) rather than voltage producing (potentiometric) electrode and used to measure pO2?

    Clark

  • 34

    For the determination of serum bilirubin concentration, quantitative is obtained by measuring the green color of:

    Azobilirubin

  • 35

    True about mohr pipet

    Calibration marks do not extend up to the tip of the pipet

  • 36

    Increased: Total bilirubin, Indirect bilirubin, ALT, AST, ALP Decreased: Urine urobilinogen

    Biliary obstruction

  • 37

    Not the exact question: Patient with chronic alcoholism. White part of the eyes are slightly yellow. Test for? 1 - ALT (or ALP, nalipat ko) 2 - SGPT and SGOT 3 - GGT 4 - Total and Direct Bilirubin

    123

  • 38

    Nalipat ko sorry, about serum enzymes ni siya.

    a. ALP is elevated in bone disease

  • 39

    Test Results: ALP - increased Creatinine - Increased CK-MB - normal

    Crush injury to the thigh

  • 40

    What is the reason for the addition of an accelerator in bilirubin determination?

    Accelerates combination by dissolving albumin from bilirubin

  • 41

    Which of the following sets of results would be consistent with macroamylasemia?

    Increased serum AMS & Normal urine AMS

  • 42

    Which of the following describes why a hemolyzed sample gives falsely increased CK activity?

    Adenylate Kinase on the serum produce more ATP or ADP

  • 43

    Which instrument requires a primary and secondary monochromator?

    Fluorometer

  • 44

    When measuring K+ with an ion-selective electrode by means of liquid ion-exchange membrane, what antibiotic will be incorporated into the membrane?

    Valinomycin

  • 45

    In colorimetric titration:

    The end product is measured by amperometry

  • 46

    Fluorometers are designed so that the path of the exciting light is at right angle to the path of the emitted light. What is the purpose of this design?

    Prevent excitation light from reaching the detector

  • 47

    Nephelometry is based on the measurement of light that is?

    Scattered by particles in suspension

  • 48

    The conditions below are all causes of alkalosis. Which condition is associated with respiratory alkalosis?

    Anxiety

  • 49

    What electrolyte measurement is least affected by hemolysis?

    Calcium

  • 50

    Which of the following values is the threshold critical value for low potassium level?

    2.5 mmol/L

  • 51

    Which of the following is the primary mechanism for vasopressin/ADH release?

    Hyperosmolar plasma

  • 52

    Which of the following is NOT associated with potassium?

    Major anion of the intracellular fluid

  • 53

    A patient presents with Addison’s disease. Serum Na and K analysis are performed. What would the results reveal?

    Low sodium, high potassium levels

  • 54

    A patient comes to the laboratory for his follow-up check-up and presents to the receptionist his Doctor's request. The receptionist makes a list of the tests requested in a lab request form. When the results were released, it was found out that a very important test was not included in the list previously made by the receptionist. What type of error was committed?

    Pre-analytical

  • 55

    When do the highest levels of gonadotropins occur?

    At the midpoint of the menstrual cycle

  • 56

    Which of the following contributes the most to total serum CO2?

    HCO3-

  • 57

    Which statement below about adrenal cortical dysfunction is true?

    Cushing's syndrome is associated with glucose intolerance.

  • 58

    What enzyme exists chiefly in skeletal muscle, heart, and brain; is grossly elevated in active muscular dystrophy; and rises early in myocardial infarction?

    Creatinine kinase

  • 59

    A patient’s blood gas results are as follows: pH = 7.31; dCO2 = 2 mmol/L; HCO3 = 20 mmol/L. These results would be classified as:

    Respiratory alkalosis

  • 60

    What enzyme may show decreased activity or absent which results to Maple syrup urine disease?

    Alpha keto acid decarboxylase

  • 61

    What do we call the ability of the procedure to measure only the component it claims to measure?

    Specificity

  • 62

    What condition is suggested given the following laboratory data? ALP: extremely high Direct bilirubin: normal GGT: normal Alanine aminotransferase: normal

    Paget's disease

  • 63

    Which plasma protein determines the risk of cardiovascular disease and is also an acute phase reactant?

    hsCRP

  • 64

    Which of the following the medical technologist must follow in doing quality control in all analysis? 1. Analyze something… 2. Always us sound quality equipment 3. Follow the instructions excessively 4. Fix the machine before the instructor finds out

    123

  • 65

    Secretion of hormones by the anterior pituitary may be controlled by the circulating levels of hormones from the respective target glands, as well as hormones secreted by what organ?

    Hypothalamus

  • 66

    Which of the following tissues does NOT secrete steroid hormones?

    Pituitary gland

  • 67

    As a screening test for Cushing's syndrome, the physician wishes to see whether a patient exhibits normal diurnal rhythm in his or her cortisol secretion. At what time should the specimen be drawn for plasma concentration?

    8 am, 4pm

  • 68

    Urinary HVA is most often assayed to detect:

    Neuroblastoma

  • 69

    Because of infertility problems, a physician would like to determine when a woman ovulates. The physician orders serial assays of plasma progesterone. From these assays, how can the physician recognize when ovulation occurs?

    After ovulation, progesterone rapidly increases

  • 70

    A patient has an elevated T3 and free T4 and very low TSH. What is the most likely cause of these results?

    Primary hyperthyroidism

  • 71

    Which of the following compounds is NOT a precursor of estrogen?

    Aldosterone

  • 72

    What would be an example of ectopic hormone production?

    Growth hormone production by lung tumors

  • 73

    Which formula is most accurate in predicting plasma osmolality?

    2(Na) + (glucose/18) + (BUN/2.8)

  • 74

    Progesterone is synthesized and secreted by the

    Corpus luteum and placenta

  • 75

    Which of the following hormones initiates its response by binding to cytoplasmic receptors?

    Estradiol

  • 76

    What is the primary product of methanol metabolism by the alcohol- aldehyde dehydrogenase system?

    Formic acid

  • 77

    The term pharmacokinetics refers to the

    Relationship between drug dose and drug blood level

  • 78

    An automated CK assay gives a reading that is above the limits of linearity. A dilution of the serum ample is made by adding 0.1 ml serum and 0.9 ml normal saline solution. A repeat assay was done using the diluted sample and the results was 350U/L. What should be the correct report of the undiluted serum be?

    3500

  • 79

    Which electrolyte measurement is least affected by hemolysis?

    Calcium

  • 80

    The term "lipid" encompasses a wide variety of compounds characterized as being insoluble in nonpolar solvents. Which of the following vitamins IS NOT classified as fat soluble?

    Vitamin C

  • 81

    Increased trough levels of aminoglycosides in the serum are often associated with toxic effects to which organ?

    Kidney

  • 82

    In general, in which of the following situations is the analysis of a tumor marker most useful?

    Testing for recurrence

  • 83

    Which of the following is the best analyte for breast cancer?

    CA 15-3

  • 84

    THC (tetrahydrocannabinol) is the principle active component of what drug?

    Marijuana

  • 85

    What is the normality of a 500 ml solution with 7g H2SO4? (H2SO4 mol wt=98)

    0.285

  • 86

    What is being measured by the Para Amino Hippurate test or the Diodrast test?

    Renal blood flow

  • 87

    Which amino acid has sulfur on the R group

    Methionine

  • 88

    Primary aldosteronism results from a tumor of the adrenal cortex. How would the extracellular fluid be affected?

    Increased sodium, decreased potassium levels

  • 89

    Which of the following is the smallest breakdown product of protein?

    Amino acid

  • 90

    What reaction involved in the formation of NAD from NADH?

    Reduction

  • 91

    Carbohydrate that has 3 carbon atoms

    Glyceraldehyde

  • 92

    What is the Structure?

    Unsaturated Fatty acids

  • 93

    What are products of Glucose Oxidation? 1. CO2 2. H2O 3. ATP 4. Lactic acid

    123

  • 94

    Which of the following are the complete oxidation products of glucose metabolism?

    Carbon dioxide, water, ATP

  • 95

    Which of these describes the chemical bonds formed when the carboxyl group of one amino acid is joined to the amino group of another amino acid?

    Peptide bond

  • 96

    Which of the following should be strictly followed when performing venipuncture? 1. Always be aware that blood borne infections are acquired from needle stick 2. above the IV line chuchu 3. Enter the skin w/ the needle at approx 15° angle with the bevel of the needle up 4. It is acceptable to withdraw the needle without removing the tourniquet

    13

  • 97

    Which of the following proteins has low weight and is found on the surface of nucleated cells

    B2- Microglobulin

  • 98

    An OB was concerned about a pregnant woman who was at risk of preterm delivery. What is the best marker for this situation?

    Fibronectin

  • 99

    The density of a lipoprotein particle is determined mostly by its protein and triglyceride content. The higher the lipid content, the less dense the lipoprotein particle; therefore, the closer they migrate to the top of the tube during the ultracentrifugation process.

    Both statements are correct

  • 100

    Pipettes that needs to be rinsed out for complete delivery of volume

    To contain