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