Mlt Chemistry Ch. 11,13,14,15,26

Front 1

Several enzymatic triglycerides methods measure the production or consumption of

Back 1

NADH

Front 2

The most likely cause for serum/plasma to appear "milky" is the presence of:

Back 2

Increased chilomicrons

Front 3

In the colorimetric determination of cholesterol, using the enzyme cholesterol oxidase, which the agent that oxidizes the colorless organic compound, 4aminoantipyrine, to a pink complex?

Back 3

hydrogen peroxide (h202)

Front 4

Which lipoprotein is the major carrier of cholesterol to peripheral tissues?

Back 4

VLDL

Front 5

Are increased levels of apolipoprotein A-I are associated with increased risk of coronary artery disease?

Back 5

False

Front 6

A patient is admitted to the hospital with intense chest pains. The patient's primary care physician requests that the emergency room doctor order several tests, including a lipid profile with cholesterol fractionation. The patient's results are as follows:Total Cholesterol = 400 mg/dL Triglycerides = 300 mg/dLHDL Cholesterol = 100 mg/dL LP Electrophoresis - pending The LDL cholesterol for this patient would be ____ mg/dL.

Back 6

240

Front 7

A patient is admitted to the hospital with intense chest pains. The patient's primary care physician requests that the emergency room doctor order several tests, including a lipid profile with cholesterol fractionation. The patient's results are as follows: Total Cholesterol = 400 mg/dL Triglycerides = 300 mg/dL HDL Cholesterol = 100 mg/dL LP Electrophoresis - pending This patient's LDL cholesterol is:

Back 7

PT's cholesterol is High > 135mg/dL

Front 8

As part of a lipoprotein phenotyping, it is necessary to perform total cholesterol and triglyceride determinations, as well as lipoprotein electrophoresis. The test results obtained from such studies were: Triglyceride, 340 mg/dL (reference range, < 150 mg/dL) Total cholesterol, 180 mg/dL (reference range, < 200 mg/dL) Pre-beta-lipoprotein fraction increased, Beta-lipoprotein fraction normal, No chylomicrons present, Serum appearance turbid The best explanation for these results would be that the individual exhibits a phenotype indicative of:

Back 8

hyperlipoproteinemia

Front 9

Which apolipoprotein, when present in an increased concentration, would be associated with a decreased risk of coronary artery disease?

Back 9

Apo AI

Front 10

Which results would be the most consistent with high risk for coronary heart disease?

Back 10

20 mg/dL HDL cholesterol and 250 mg/dL total cholesterol

Front 11

What is the presumed defect in most cases of familial type IIa hyperlipoproteinemia?

Back 11

Defective receptors for LDL

Front 12

Hyperchylomicronemia (type l) in childhood has been associated with

Back 12

Deficiencies of apolipoprotein cII and lipoprotein lipase

Front 13

Which cardiac marker is elevated for the longest period after myocardial infarction (Ml)?

Back 13

tropoin T

Front 14

What occurs during a state of low blood volume and decreased extracellular sodium level (as in cardiac failure)?

Back 14

converted to angiotension which endues the secretior of aldosteron by the agenio gland which in terns increasion in sodium and retention of water

Front 15

A hemolyzed specimen is received in the laboratory for enzyme analysis. The assay for which of the following enzyme values would be affected by hemolysis?

Back 15

creatine kinase

Front 16

Which isoenzyme of creatine kinase (CK) is primarily found in cardiac muscle?

Back 16

CK-MB

Front 17

Myocardial infarction can produce a CK isoenzyme profile that is similar to:

Back 17

strenuous exercise

Front 18

Which cardiac markers is the first to increase after an acute myocardial infarction?

Back 18

myoglobin Ck- mb

Front 19

What is true regarding the clinical use of CK-MB (CK2)?

Back 19

mass unit assays are more sensitive than electrophratic method

Front 20

Isoforms of CK are

Back 20

formed in the circulation by hydrlolsis of lycine from ck mm and ck-mb

Front 21

In a nonmyocardial, as opposed to a myocardial, cause of an increased serum or plasma CK-MB, what would be expected?

Back 21

increased ck-mb that is persistent

Front 22

An LD flip, in assessing a possible myocardial infarction, refers to:

Back 22

LD grater than LD2

Front 23

Which Ml marker is the most specific and sensitive and remains elevated for 14 days or more?

Back 23

troponin T

Front 24

how are proteins classified?

Back 24

on their shape and solubility

Front 25

3 tissue sources

Back 25

skeletal muscle, heart muscle, brain tissue

Front 26

3 tropoin

Back 26

TnT, TnI, TnC

Front 27

triglycerides components

Back 27

three fatty acids and one glycerol molecule

Front 28

general structure of amino acid

Back 28