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Chemistry Certification
Start Test
Study First
Subject
:
certifications
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Thiis serum protein fraction is most likely to be elevated in patients with nephrotic syndrome?
alpha 2 beta
freezing point
Wilson's disease
TSH
2. A patient with hemolytic anemia will...
intestinal malabsorption
show a decrease in glycosylated hgb
90%
freezing point
3. On immunoassays using enzyme-labeled antibodies or antigens: ___________ can be carried out with a spectrophotometer
creatinine
2Na + glucose over 20 + BUN over 3
high carbohydrate diet for 3 days
quantitation of label
4. An Rf value of 0.5 in thin-layer chromatography means...
trig
parathyroid
Solute moves half the distance of the solvent front
bone
5. The most common type of congenital adrenal hyperplasia associated with increased plasma concentrations of 17 a-hydroxyprogesterone and increased urinary excretion of pregnanetriol is...
65
monitoring the course of a known cancer
21-hydroxylase deficiency
turn off
6. The concentration of serum carotene is affected MOST by...
breast cancer
changes in the fuel
diet
sodium potassium chloride CO2
7. This electrolyte is the chief plasma cation whose main function is maintaining osmotic pressure
high co2 and hco3
sodium
didymium filter
peroxidase-like activity of hemoglobin
8. The principle of the occult blood test depends on the...
1:5
hyperventilation
A1
peroxidase-like activity of hemoglobin
9. A one MOLAL solution is equivalent to...
1 mol/kg
oxalacetate to malate
metabolic acidosis
TSH
10. Major actions of angiotensin II include...
run a new set of controls
beta
GFR
increased vasoconstriction
11. A patient with glomerulonephritis would present the following serum results...
<1%
low pH
glucose tolerance test
BUN increased
12. The electrophoretic pattern of a plasma sample compared with a serum sample shows a...
sharp fibrinogen peak
serum aliquots - one heated
prostate
whole blood can be used
13. This calcium procedure utilizes lanthanum chloride to emliminate iterfering substances
breast cancer
plasma bicarbonate
albumin
atomic absorption
14. Characteristic of the Bence Jones protein that is used to distinguish it from other urinary proteins is its solubility...
alkaline picrate
cyclic antidepressants
ALP with fresh draw
@ 100
15. Cerebrospinal fluid for glucose assay should be...
analyzed immediately
freezing point
obstructive jaundice
40-50
16. If the correlation coefficient (r) of two variables is zero...
minimize the effects of interference
respiratory ACIDOSIS
CK-MB
there is an absence of correlation
17. The following data were obtained on amniotic fluid from a gestation of 36 weeks' duration by menstrual dates: L/S = 2 Phosphatidyl glycerol not present This can be concluded from these data?
band width
21-hydroxylase deficiency
the fetus is at risk for respiratory distress
adding an acid stabilizer
18. The preparation of a patient for standard tolerance testing should include...
immunofixation
chloride
high carbohydrate diet for 3 days
glucose
19. What substance gives feces its normal color?
GGT
urobilin
enzyme induction
sample exposed to light
20. The following results were obtained in a creatinine clearance evaluation: Urine concentration 84 mg/dL Urine volume 1440 mL/24 hr Serum concentration 1.4 mg/dL Body surface area 1.60 m2 (average = 1.73 m2) The creatinine cle~trance in mL/min is...
increased vasoconstriction
65
chylomicrons VLDL
3500
21. High levels of which lipoprotein class are associated with decreased risk of accelerated atherosclerosis?
HDL
fraction absorbed into systemic circulation
chloride
triglycerides
22. A serum sample for acid phosphatase determination is best prepared for room temperature storage by...
adding an acid stabilizer
creatinine
O2
cholesterol normal triglycerides elevated
23. Blood was collected in a serum separator tube from a patient who had been fasting since midnight. The time of collection was 7:00 AM. The laboratory test that should be re-collected is...
brain
parathyroid hormone
triglycerides
thyroxine binding globulin
24. A blood sample was received from the emergency room with a request for narcotic analysis. The request slip indicated that the patient (a known heroin addict) responded to naloxone administration. The serum was negative for morphine by EIA. What other
bilirubindiglucuronide
parathyroid hormone
methadone
F
25. The buffering capacity of blood is maintained by a reversible exchange process between bicarbonate and...
obstructive jaundice
carbohydrate hyperalimentation
chloride
lead
26. The major fraction of organic iodine in the circulation is in the form of...
TSH
32
thyroxine
dirty electrodes
27. This wavelengths is within the ultraviolet rang.
340
thyroxine
C3 complement
breast cancer
28. In the fasting state - the arterial and capillary blood glucose concentration varies from the venous glucose concentration by approximately how many mg/dL?
5mg higher
CML
lactic acidosis
1 micromole per minute
29. The TRH (thyrotropin-releasing hormone) stimulation test is useful in assessing...
parathyroid hormone
volumetric flask
LDH
hyperthyroidism
30. When separating serum proteins by cellulose acetate electrophoresis using veronal buffer at pH 8.6 - beta globulin migrates...
21-hydroxylase deficiency
faster than gamma
run a new set of controls
sodium potassium chloride CO2
31. A person suspected of having metabolic alkalosis would have these laboratory findings
faster than gamma
bicarbonate buffer
transferrin
CO2 and pH elevated
32. Sixty to seventy-five percent of the plasma cholesterol is transported by...
lithium
LDL
respiratory acidosis
WITHOUT a disease with a negative test
33. Calcium concentration in the serum is regulated by...
triglycerides
parathyroid hormone
HCT
oxalacetate to malate
34. Testing for the diagnosis of lead poisoning should include...
increased O2 decreased HCO3
(testing of urine for) delta-am.. acid
coulometry
creatinine
35. A patient is admitted to the emergency room in a state of metabolic alkalosis.This would be consistent with this diagnosis?
5
catalyze redox reactions
valine leucine isoleucine
high co2 and hco3
36. Malic dehydrogenase is added to the aspartate aminotransaminase (AST) reaction to catalyze the conversion of...
oxalacetate to malate
creatinine
emphysema
thyroxine
37. If a drug has a half-life of 7 hours - how many doses given at 7-hour intervals does it usually take to achieve a steady state or plateau level?
A1c
CK
5
is quantitated by the amount of light produced
38. A carbonate salt used to control manic-depressive disorders is...
591
lithium
glucose oxidase
acute intermittent porphyria
39. This elevates carboxyhemoglobin?
carbs
A1
wavelength
exposure to CO
40. This method employs a highly specific antibody to thyroxine
T4 by RIA
B12 deficiency
porphyrin and porphobilinogen screen
5 tri 15 cholesterol 50 protein
41. Amino acid associated with a sulfhydryl group
cysteine
cholesterol normal triglycerides elevated
dirty applicators
bicarbonate buffer
42. The method of choice for diagnosis of a protracted attack of porphyria is...
HPLC analysis of porpobilinogen on 24hr urine
lithium
remove excess unbound iron
BUN increased
43. The following laboratory results were obtained on arterial blood: Sodium 136 mEq/L pH 7.32 Potassium 4.4 mEq/L PCO2 79 mm Hg Chloride 92 mEq/L Bicarbonate 40 mEq/L These results are most compatible with...
turn off
respiratory acidosis
scattered at a right angle
creatine kinase
44. A 9-month-old boy from Israel has gradually lost the ability to sit up and develops seizures. He has an increased amount of a phospholipid called GM2-ganglioside in his neurons - and he lacks the enzyme hexosaminidase A in his leukocytes. These findi
whole blood can be used
dirty electrodes
sample exposed to light
Tay-sachs
45. The test for adrenal cortical hyperfunction that has the greatest diagnostic sensitivity is measurement of...
urinary free cortisol
hyperventilation
methyl alcohol
atomic absorption
46. An automated method for measuring chloride that generates silver ions in the reaction is...
viral hepatitis
act as carriers for ions
coulometry
brain
47. The greatest activities of serum AST and ALT are seen in...
prevent phosphate interference
acute hepatitis
band width
1 mol/kg
48. In the immunoinhibition phase of the CK-MB procedure...
591
changes in the fuel
LDH
M subunit is inactivated
49. In familial hypercholesterolemia - the hallmark finding is an elevation of...
patient noncompliance
creatinine
LDL
specificity
50. This applies to cryoscopic osmometry
thyroxine binding globulin
Temperature is a function of the number of particles in solution
parathyroid
pH pCO2 pO2
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