Podcast
Questions and Answers
What is the primary role of urea in the body?
What is the primary role of urea in the body?
- To catalyze protein metabolism
- To remove waste products from the circulation (correct)
- To assess renal function
- To synthesize amino acids
What is the term used to describe urea in the context of protein metabolism?
What is the term used to describe urea in the context of protein metabolism?
- Urea acid
- Amino acid residue
- Urea nitrogen (correct)
- Protein nitrogen
Where is urea synthesized in the body?
Where is urea synthesized in the body?
- Liver (correct)
- Pancreas
- Spleen
- Kidneys
What is the purpose of measuring urea levels in clinical chemistry?
What is the purpose of measuring urea levels in clinical chemistry?
What is the source of urea in the body?
What is the source of urea in the body?
What is the conversion factor to convert BUN to urea?
What is the conversion factor to convert BUN to urea?
What does increased serum urea indicate?
What does increased serum urea indicate?
What is a possible reason for decreased serum urea?
What is a possible reason for decreased serum urea?
What type of disorders can cause abnormal serum urea levels?
What type of disorders can cause abnormal serum urea levels?
Why is the term 'blood urea nitrogen' still used?
Why is the term 'blood urea nitrogen' still used?
What can the levels of urea indicate?
What can the levels of urea indicate?
What is a possible cause of increased serum urea?
What is a possible cause of increased serum urea?
What is another purpose of measuring urea levels?
What is another purpose of measuring urea levels?
What is a possible reason for decreased serum urea?
What is a possible reason for decreased serum urea?
What is the significance of urea measurement in dialysis patients?
What is the significance of urea measurement in dialysis patients?
What is the expected outcome of proper dialysis on urea levels?
What is the expected outcome of proper dialysis on urea levels?
What is the basis of urea measurement in the blood sample?
What is the basis of urea measurement in the blood sample?
What is the target range for creatinine levels after dialysis?
What is the target range for creatinine levels after dialysis?
What is the sample type used for urea measurement?
What is the sample type used for urea measurement?
How many analytic methods are employed in the lab to determine urea levels?
How many analytic methods are employed in the lab to determine urea levels?
What is the product formed when urea reacts with glutamine dehydrogenase?
What is the product formed when urea reacts with glutamine dehydrogenase?
What is the reference range for urea levels in the blood?
What is the reference range for urea levels in the blood?
What is the outcome of the reaction between diacetyl monoxime and water?
What is the outcome of the reaction between diacetyl monoxime and water?
What is the final product formed in the Chemical Method of urea measurement?
What is the final product formed in the Chemical Method of urea measurement?
What is the enzyme involved in the Kinetic Method of urea measurement?
What is the enzyme involved in the Kinetic Method of urea measurement?
What is the function of urease in analytical methods?
What is the function of urease in analytical methods?
What specimen is susceptible to bacterial decomposition and should be refrigerated if not tested immediately?
What specimen is susceptible to bacterial decomposition and should be refrigerated if not tested immediately?
What is the significance of fasting in urea testing?
What is the significance of fasting in urea testing?
What is Azotemia?
What is Azotemia?
What is the basis of urea measurement in the GDH method?
What is the basis of urea measurement in the GDH method?
What is the name of the enzyme involved in the enzymatic method of urea measurement?
What is the name of the enzyme involved in the enzymatic method of urea measurement?
What is uremic syndrome also known as?
What is uremic syndrome also known as?
What is the result of reduced renal blood flow during instances like congestive heart failure?
What is the result of reduced renal blood flow during instances like congestive heart failure?
What is the consequence of less blood being filtered by the kidney?
What is the consequence of less blood being filtered by the kidney?
What is a possible cause of prerenal disorders?
What is a possible cause of prerenal disorders?
What is characterized by slight increases in urea levels?
What is characterized by slight increases in urea levels?
What can lead to uremic syndrome if left untreated?
What can lead to uremic syndrome if left untreated?
What is the primary cause of increased plasma urea concentration in the renal stage?
What is the primary cause of increased plasma urea concentration in the renal stage?
What is the term used to describe the obstruction of the urinary tract?
What is the term used to describe the obstruction of the urinary tract?
Why does the kidney become dysfunctional in chronic renal disease?
Why does the kidney become dysfunctional in chronic renal disease?
What can aid in the differentiation of the cause of abnormal urea concentration?
What can aid in the differentiation of the cause of abnormal urea concentration?
What is the outcome of proper management of patients with abnormal urea concentrations?
What is the outcome of proper management of patients with abnormal urea concentrations?
What is creatinine formed from in the body?
What is creatinine formed from in the body?
What is the primary function of measuring creatinine levels?
What is the primary function of measuring creatinine levels?
Why are creatinine levels regulated by kidney excretion?
Why are creatinine levels regulated by kidney excretion?
What is the relationship between creatinine levels and blood urea nitrogen (BUN)?
What is the relationship between creatinine levels and blood urea nitrogen (BUN)?
What happens if creatinine levels continue to rise after medication?
What happens if creatinine levels continue to rise after medication?
What is the significance of differences in muscle mass of the sexes?
What is the significance of differences in muscle mass of the sexes?
What is the reactant that reacts with creatinine to form a red tautomer known as creatinine picrate in the Jaffe method?
What is the reactant that reacts with creatinine to form a red tautomer known as creatinine picrate in the Jaffe method?
What is the purpose of using Fuller's earth or aluminum magnesium citrate in the Jaffe reaction?
What is the purpose of using Fuller's earth or aluminum magnesium citrate in the Jaffe reaction?
What is the enzyme that catalyzes the reaction of creatine to yield creatine in the enzymatic method of creatinine measurement?
What is the enzyme that catalyzes the reaction of creatine to yield creatine in the enzymatic method of creatinine measurement?
What is the product formed when sarcosine reacts with sarcosine oxidase in the enzymatic method of creatinine measurement?
What is the product formed when sarcosine reacts with sarcosine oxidase in the enzymatic method of creatinine measurement?
What is the final product that represents the amount of creatinine in the enzymatic method of creatinine measurement?
What is the final product that represents the amount of creatinine in the enzymatic method of creatinine measurement?
What is the role of peroxidase in the enzymatic method of creatinine measurement?
What is the role of peroxidase in the enzymatic method of creatinine measurement?
What is plasma creatinine inversely proportional to?
What is plasma creatinine inversely proportional to?
Why is a 24-hour basis used for urine creatinine measurement?
Why is a 24-hour basis used for urine creatinine measurement?
What is not a requirement for plasma creatinine testing?
What is not a requirement for plasma creatinine testing?
What can plasma creatinine be used to detect?
What can plasma creatinine be used to detect?
What is the relationship between plasma creatinine and diet?
What is the relationship between plasma creatinine and diet?
What is used to estimate the glomerular filtration rate?
What is used to estimate the glomerular filtration rate?
What correction is required for estimating glomerular filtration rate?
What correction is required for estimating glomerular filtration rate?
When are results of estimated glomerular filtration rate reported as a number?
When are results of estimated glomerular filtration rate reported as a number?
What is the unit of measurement for estimated glomerular filtration rate?
What is the unit of measurement for estimated glomerular filtration rate?
What is estimated by the MDRD formula?
What is estimated by the MDRD formula?
What is characterized by an abnormal increase in plasma uric acid concentration?
What is characterized by an abnormal increase in plasma uric acid concentration?
What is a possible cause of increased serum uric acid?
What is a possible cause of increased serum uric acid?
What is Lesch-Nyhan syndrome characterized by?
What is Lesch-Nyhan syndrome characterized by?
What is a possible cause of decreased serum uric acid?
What is a possible cause of decreased serum uric acid?
What is an example of a condition that can cause an increase in uric acid production?
What is an example of a condition that can cause an increase in uric acid production?
What is the product of the reaction between uric acid and phosphotungstic acid?
What is the product of the reaction between uric acid and phosphotungstic acid?
What is the typical reference range for uric acid levels in males?
What is the typical reference range for uric acid levels in males?
What is the wavelength at which the decrease in absorbance is monitored to detect uric acid?
What is the wavelength at which the decrease in absorbance is monitored to detect uric acid?
What is the enzyme that reacts with uric acid to produce allantoin, hydrogen peroxide, and CO2?
What is the enzyme that reacts with uric acid to produce allantoin, hydrogen peroxide, and CO2?
What is the typical reference range for uric acid levels in females?
What is the typical reference range for uric acid levels in females?
What is the primary role of hepatocytes in the body?
What is the primary role of hepatocytes in the body?
What happens when hepatocytes fail to convert ammonia to urea?
What happens when hepatocytes fail to convert ammonia to urea?
What is the condition associated with high levels of ammonia in the blood?
What is the condition associated with high levels of ammonia in the blood?
What is the purpose of measuring blood ammonia levels?
What is the purpose of measuring blood ammonia levels?
What type of specimen is required for measuring blood ammonia levels?
What type of specimen is required for measuring blood ammonia levels?
What is the most common cause of increased blood ammonia levels?
What is the most common cause of increased blood ammonia levels?
What is the primary function of glutamate dehydrogenase in the measurement of ammonia?
What is the primary function of glutamate dehydrogenase in the measurement of ammonia?
What is the range of normal plasma ammonia levels?
What is the range of normal plasma ammonia levels?
What is a potential interference in the measurement of ammonia?
What is a potential interference in the measurement of ammonia?
What is the wavelength used to monitor the decrease in absorbance in the measurement of ammonia?
What is the wavelength used to monitor the decrease in absorbance in the measurement of ammonia?
What is the clinical significance of increased plasma ammonia levels?
What is the clinical significance of increased plasma ammonia levels?
