Clinical chem exam 2 quizzes

Pt with intense joint pain, history of inflammation and redness of wrists and big toe, uric acid 9.1 mg/dL. Diagnosis?

Which of the following support materials is routinely used in serum protein electrophoresis?

Increased serum albumin concentrations are seen in which of the following conditions?

If a porphyria is suspected, then what analyte is screened for in a urine specimen?

Zinc protoporphyrin or free erythrocyte protoporphyrin measurements are useful to assess blood conc. of what analyte?

The eGFR is often preferred in the evaluation of kidney function because it:

Hypouricemia can occur as a result of which of the following?

Which situation could falsely increase measured blood ammonia concentration?

Why must the Biuret method be modified for measurement of protein in CSF?

Ammonia concentrations are primarily used to elevate the patient's:

What protein is found in increased amounts in the amniotic fluid in cases of spina bifida?

Which of the following is a function of protiens?

Which of the following serum proteins migrates to the beta-globulin fraction

What characteristic may cause a healthcare provider to suspect a patient has porphyria?

Toxic effects of elevated blood ammonia concentration include:

In the clinical lab, urea N is measured most often using:

Which compound constitutes the majority of NPN substances in the blood

Which one of the following is not a measureable NPN substance in humans?

In the Jaffe reaction, a red-orange chromogen is formed when creatinine reacts with:

Prerenal azotema is a concern for patients experiencing which of the following clinical conditions

Which of the following protein fractions contains only one protein?

Which condition is not assocaited with elevated plasma uric acid concentration?

Elevated blood urea concentration with clinical symptomology is known as:

What is the most common method for the measurement of serum albumin?

A tech gets a urea N value 61 mg/dL & serum creatinine of 2.5 mg/dL on a pt. Identify the condition impacting renal func

What method is used to identify free light chains in urine

A laboratorian reports urea N of 9mg/dL. What is the urea concentration for this sample?

Sources of error in measurement of uric acid using urate oxidase methods include:

albumin pI (4.7), gamma globulin pI (7.6), which migrates farthest toward the electrode during isoelectric focusing?

Which statement accurately describes creatinine biosynthesis?

What are the initial substrates in the formation of heme?

Correlation of ammonia concentration w/ disease severity & prognosis is most useful in which clinical condition?

The rate of migration during serum protein electrophoresis is based on which of the following properties?

What acute phase reactant protein inhibits neutrophil elastase?

Substances known to falsely elevte results when measuring creatinine by the Jaffe reaction include all except:

What type of electrophoresis is routinely used to identify the specific type of monoclonal gammopathy?

In humans, uric acid is the final product of:

Which of the following causes decreased albumin concentrations?

Serum creatinine concentration is typically:

In the biuret procedure, protein peptide bonds complex with what type of ions to produce a violet-colored end-product?

Uric acid nephrolithiasis refers to:

If a delay in testing a sample for ammonia concentration is anticipated, which is the most appropriate way to handle it?

Uric acid as the end product of specific metabolic processes in humans is thought to be the result of:

What glycoprotein facilitates the removal of hemoglobin by the reticuloendothelial system?