CLINICAL CHEMISTRY PROGRESS EXAM PART 2

26問 • 1年前

問題一覧

Which statement about TSH and T4 in early pregnancy is correct? * 0/1 TSH and thyroid hormones fall TSH falls and thyroid hormones rise TSH and thyroid hormones both rise TSH rises and thyroid hormones fall

TSH falls and thyroid hormones rise

Which of the following lipid results would be expected to be falsely elevated on a serum specimen from a non-fasting patient? * 1/1 Cholesterol Triglyceride HDL LDL

Triglyceride

Which of the following enzymes catalyzes the conversion of starch to glucose and maltose? * 1/1 Malate dehydrogenase (MD) Amylase (AMS) Creatine kinase (CK) Isocitric dehydrogenase (ICD)

Amylase (AMS)

The main function of serum albumin in the peripheral blood is to: * 1/1 Maintain colloidal osmotic pressure Increase antibody production Increase fibrinogen formation Maintain blood viscosity

Maintain colloidal osmotic pressure

The principle of the Biuret reaction is the result of the formation of a complex of: * 1/1 CuSO4 with peptide bonds NaNO3 with protein chains BCG with albumin Chromogen with amino acids

CuSO4 with peptide bonds

Creatinine clearance is used to estimate the: * 1/1 Tubular secretion of creatinine Glomerular secretion of creatinine Renal glomerular and tubular mass Glomerular filtration rate

Glomerular filtration rate

Clinical assays for tumor markers are most important for: * 1/1 Screening for the presence of cancer Monitoring the course of a known cancer Confirming the absence of disease Identifying patients at risk for cancer

Monitoring the course of a known cancer

Severe diarrhea causes: * 1/1 Metabolic acidosis Metabolic alkalosis Respiratory acidosis Respiratory alkalosis

Metabolic acidosis

An emphysema patient suffering from fluid accumulation in the alveolar spaces is likely to be in what metabolic state? * 1/1 Respiratory acidosis Respiratory alkalosis Metabolic acidosis Metabolic alkalosis

Respiratory acidosis

Blood received in the laboratory for blood gas analysis must meet which of the following requirements? * 0/1 On ice, thin fibrin strands only, no air bubbles On ice, no clots, fewer than 4 air bubbles On ice, no clots, no air bubbles Room temperature, no clots, no air bubbles

On ice, no clots, no air bubbles

Select the test which evaluates renal tubular function. * 0/1 IVP Creatinine clearance Osmolality Microscopic urinalysis

Osmolality

Which of the following electrolytes is the chief plasma cation whose main function is maintaining osmotic pressure? * 1/1 Chloride Calcium Potassium Sodium

Sodium

A decrease in serum haptoglobin accompanies which of the following? * 1/1 Extravascular hemolysis Intravascular hemolysis Extramedullary hematopoiesis Suppressed erythropoiesis

Intravascular hemolysis

The decreased release of thyroid-stimulating hormone (TSH) would result in which of the following actions from the hypothalamic-pituitary-thyroid axis? * 0/1 Decreased release of TSH from the pituitary gland Increased release of TSH from the thyroid gland Decreased release of thyroid hormones from the thyroid glands Increased release of thyroid hormones from the thyroid glands

Decreased release of thyroid hormones from the thyroid glands

Which of the following is true regarding indirect bilirubin? * 1/1 It requires an accelerator to react with the diazo reagent It is also called delta bilirubin It is calculated by adding the total bilirubin and direct bilirubin together It is elevated in liver obstruction

It requires an accelerator to react with the diazo reagent

You receive a blood gas sample on a patient who is in the emergency room for assessment of unexplained vomiting for the past 4 days and abnormal respirations. Which of the following interpretations best describes the patient’s blood gas results? pH: 7.50 pO2: 85 mm Hg pCO2: 55 mm Hg HCO3-: 35 mmol/L * 0/1 Partially compensated metabolic acidosis Partially compensated metabolic alkalosis Compensated metabolic alkalosis Compensated metabolic acidosis

Partially compensated metabolic alkalosis

Alkaline phosphatase values are expected to be increased in all of the following situations except: * 1/1 Child undergoing a growth spurt During a time of increased bone remodeling After a myocardial infarction Paget’s disease

After a myocardial infarction

Which of the following hormones involved in calcium regulation acts by increasing the amount of calcium in the blood by enhancing absorption through the intestines, stimulation of osteoclasts, and suppressing loss in the urine? * 0/1 PTH Calcitonin Vitamin D Cortisol

PTH

Which of the following hormones involved in calcium regulation acts by decreasing both calcium and phosphorous? * 1/1 PTH Calcitonin Vitamin D Cortisol

Calcitonin

Preanalytical errors are major contributors to total laboratory errors. Which of the following is not a common preanalytical error? * 1/1 Specimen collected in the wrong container Unlabeled specimen QNS, hemolyzed or lipemic specimens Failure to flag a critical value on a laboratory report

Failure to flag a critical value on a laboratory report

A delta check is a method that: * 1/1 Determines the mean and variance of an instrument Monitors the testing system for precision Monitors patient samples day to day Is determined by each laboratory facility

Monitors patient samples day to day

A laboratory employee identifies arm and neck pain after performing repetitive movements during his/her work assignment. What is the best first action to be taken? * 1/1 Report to and discuss issue with supervisor Continue to perform work assignment and see if it improves Make an appointment with his/her personal physician Change or adjust his/her workstation

Report to and discuss issue with supervisor

Gloves worn in the laboratory for specimen processing must be removed and hands washed when: * 1/1 Answering the telephone in the technical work area Carrying a specimen outside the technical work area through "clean" areas Answering the telephone in a designated "clean" area After handling specimens from known isolation precaution patients

Answering the telephone in a designated "clean" area

After an accidental needle stick with a contaminated needle, the first action should be to: * 1/1 Apply antiseptic ointment to the wound Seek immediate medical assistance Bandage the wound Thoroughly wash the wound with soap and water

Thoroughly wash the wound with soap and water

The term used to describe reproducibility is: * 1/1 Sensitivity Specificity Accuracy Precision

Precision

Osmometry is a technique for measuring the concentration of solute particles that contribute to the osmotic pressure of a solution. The most common method used in a clinical laboratory to measure osmolality is: * 0/1 Dew point pressure Boiling point Freezing point depression Osmotic pressure

Freezing point depression

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology