CC Flashcards
Which laboratory performance characteristics are more relevant for
diagnosis of disease and therapeutic monitoring?
A. Specificity and Precision
B. Sensitivity and Specificity
C. sensitivity and Accuracy
D. Accuracy and Precision
B. Sensitivity and Specificity
Which statement about chronic toxicity is NOT correct?
A. Toxic effect: Always severe
B. Frequency of exposure: repeated
C. Dose: insufficient to cause an immediate response
D. Duration of exposure: extended periods
A. Toxic effect: Always severe
Enzymes are involved in which of the following processes?
(1) Anabolism
(2) Catabolism
(3) Energy generation
A. 1,2, and 3
B. 2 and 3
C. 1 and 2
D. 1 and 3
A. 1,2, and 3
Using the cutoff points for serum cholesterol, which are group, expressed
in years, matches the levels of risk for developing coronary heart disease?
● Moderate risk if cholesterol is greater than 240 mg/dL
● High risk if cholesterol is greater than 250 mg/dL
A. 40 and over
B. 30-39
C. 20-29
D. 2-19
A. 40 and over
Which is a major protein constituent of LDL?
A. ApoD
B. ApoB
C. Apo C
D. Apo A
B. ApoB
Which statistical calculation indicates the extent of variation of the
observation?
(1) Mode
(2) Range
(3) Variance
(4) Standard deviation
A. 2, 3 and 4
B. 2 and 3
C. 1, 2 and 3
D. 1 and 4
A. 2, 3 and 4
Which is NOT a catabolite of protein and nucleic acid metabolism?
A. Urea
B. Glucose
C. Uric acid
D. Creatinine
D. Creatinine
Which is a major waste product of protein catabolism?
A. Creatinine
B. Urea
C. Ammonia
D. Uric Acid
B. Urea
Which analyte is affected by diurnal variation (high in the Morning) ?
A. Thyroxine
B. Iron
C. Calcium
D. Cholesterol
B. Iron
Which is NOT a hazard associated with the use of liquid nitrogen?
A. Shock
B. Thermal burns
C. Explosion
D. Asphyxiation
A. Shock
The formula below is used to compute for ______ expressed in mg/dL
[total cholesterol - HDL] - [Triglyceride / 5]
A. LDL
B. VLDL
C. IDL
D. Lp (a)
A. LDL
Which analytic techniques do NOT measure the concentration of solute
particles in a solution?
(1) Osmometry
(2) Fluorometry
(3) Turbidimetry
(4) Nephelometry
A. 1,3, and 4
B. 2 and 4
C. 2,3, and 4
D. 1 and 3
C. 2,3, and 4
It is visually detected in the standing plasma test as a floating cream layer.
Which lipoprotein is present?
A. VLDL
B. LDL
C. HDL
D. Chylomicrons
D. Chylomicrons
Which is the steroid hormone produced by the corpus luteum and placenta
that prepares the endometrium for blastocyst implantation and maintains
pregnancy?
A. Progesterone
B. Estriol
C. hPL
D. hCG
A. Progesterone
Which is a biochemical marker for bone resorption?
A. Cross-linked C-telopeptides
B. Fibronectin
C. B-trace protein
D. Myoglobin
A. Cross-linked C-telopeptides
If serum appears opaque and milky after a 12-hr fast, triglyceride level is
probably ___ mg/dL?
A. Less than 100
B. Greater than 300
C. Greater than 600
D. Less than 200
C. Greater than 600
Which centrifuge is used when rapid centrifugation of solution is needed?
A. Horizontal-head
B. Cytocentrifuge
C. None of the items
D. Fixed-angle head
D. Fixed-angle head
Which is NOT a macroenzyme?
A. ACP
B. G6PD
C. GGT
D. ALP
B. G6PD
Which is a nondestructive technique for determining the structure of
organic compound and has been adapted for only a limited number of clinical
laboratory analyses, the most popular being lipoprotein particle
measurements?
A. Mass spectrometry
B. Matrix-assisted laser desorption ionization
C. Scintillation
D. Nuclear magnetic resonance spectroscopy
D. Nuclear magnetic resonance spectroscopy
Which has the highest protein content?
A. HDL
B. LDL
C. VLDL
D. Chylomicrons
A. HDL
Which stimulates the thyroid to release T4 and T3?
A. DIT
B. TRH
C. TSH
D. MIT
C. TSH
Which is part of spectrophotometry?
A. Nephelometry
B. Potentiometry
C. Atomic absorption
D. Gas chromatography
C. Atomic absorption
Which refers to Type 1 diabetes?
(1) Usually diagnosed in children
(2) Results from B-cell destruction
(3) Usual leads to absolute insulin deficiency
A. 1 and 3
B. 2 and 3
C. 1 and 2
D. 1, 2 and 3
D. 1, 2 and 3
Which is a sensitive assay for renal tubular integrity?
A. B2 microglobulin
B. Plasma urea
C. Plasma creatinine
D. Creatinine clearance
A. B2 microglobulin
Which are non-protein molecules used by enzymes to show full activity?
A. Ligands
B. Cofactors
C. Sugars
D. Fats
B. Cofactors
Assesses excretory function and synthetic capability of the liver except?
A. Bilirubin
B. Albumin
C. Prothrombin time
D. Transaminases
D. Transaminases
What is the value of 6.0 g/dL albumin in g/L?
A. 105
B. 80
C. 40
D. 60
D. 60
Which enzyme has a moderate specificity to liver, heart and skeletal
muscles?
A. AST
B. CPK
C. ALT
D. LDH
A. AST
What type of fire extinguisher may be used on a computer?
A. Halon
B. Dry chemical
C. Carbon dioxide
D. Pressurized water
A. Halon
Hypernatremia is defined as a serum/plasma sodium level greater than
mmol/l
A. 150
B. 160
C. 142
D. 155
A. 150
In the H-H equation, the numerator denotes the ___ factor?
A. Liver
B. Kidney
C. Heart
D. Lungs
B. Kidney
What is the effect on draw volume if evacuated tubes are stored at high
temperature?
A. Decrease
B. None
C. Intermediate
D. Increase
A. Decrease
Which condition cause cardiac arrest and can occur in the absence of any
warning clinical symptoms
A. Hyponatremia
B. Hypokalemia
C. Hypernatremia
D. Hyperkalemia
D. Hyperkalemia
When compared with circulating T3, levels of T4 are
A. The same
B. Variable
C. Lower
D. Higher
D. Higher
BUN will be significantly increased when GFR is decreased by at least ___%
A. 25
B. 100
C. 50
D. 75
C. 50
Which are antiasthmatic drugs?
(1) Theophylline (2) Theobromine (3) Digoxin (4) Lithium
A. 2 and 4
B. 3 and 4
C. 1 and 3
D. 1 and 2
D. 1 and 2
Which class of enzymes catalyze structural shifts in a molecule, causing a
change in _____.
A. Isomerases
B. Ligases
C. Transferases
D. Oxidoreductases
A. Isomerases
The needle gauge used in pediatric venipuncture
23
Which does NOT refer to neonatal primary hypothyroidism?
A. Growth deficiency
B. Mental retardation
C. Thyroiditis
D. Cretinism
C. Thyroiditis
If blood was collected using an anticoagulant, how would the volume of
plasma be USUALLY described compared to blood collected without the
anticoagulant and serum is obtained instead?
A. Same
B. Greater
C. Indeterminate
D. Lower
B. Greater