FREE Medical Laboratory Technician Questions and Answers

Question 1

What morphological trait facilitates the differentiation of renal tubular epithelial cells from spherical forms of transitional epithelial cells?

Accepted Answer

Nucleus orientation

Answer

Renal tubular epithelial cells (RTEs) and spherical transitional epithelial cells can appear similar in urine. A key distinguishing feature is the nucleus orientation: RTEs typically have an eccentrically placed nucleus, meaning it is off-center. In contrast, spherical transitional epithelial cells usually exhibit a centrally located nucleus, which aids in their differentiation during microscopic examination.

Question 2

Human chorionic gonadotropin (hCG) testing is most frequently used to identify pregnancies, but it can also be used as a diagnostic marker for which conditions?

Accepted Answer

Testicular cancer

Answer

While primarily known for detecting pregnancy, human chorionic gonadotropin (hCG) also serves as a crucial tumor marker. Elevated levels of hCG can be produced by certain germ cell tumors, most notably testicular cancer. Monitoring hCG levels is essential for the diagnosis, staging, and assessment of treatment response in these malignancies.

Question 3

Which reaction is the basis for the methodologies employed for the quantitation of bilirubin in serum/plasma samples?

Accepted Answer

Diazo

Answer

The diazo reaction is the fundamental chemical principle employed for the quantitative measurement of bilirubin in serum or plasma samples. In this reaction, bilirubin reacts with a diazonium salt to form azobilirubin, a colored compound. The intensity of this color is then measured spectrophotometrically, allowing for accurate determination of bilirubin concentration.

Question 4

Which of the following disorders is a symptom of hypernatremia?

Accepted Answer

Severe burns

Answer

Hypernatremia, an elevated sodium concentration in the blood, often results from conditions causing significant water loss in excess of sodium. Severe burns lead to extensive fluid loss through damaged skin, which is primarily water. This disproportionate loss of water concentrates the remaining sodium in the extracellular fluid, thereby causing hypernatremia.

Question 5

What corrective action may be necessary in order to issue a corrected laboratory report for an incorrectly reported culture ID and susceptibility?

Accepted Answer

Filing a quality assurance incident report

Answer

When an incorrect laboratory report, such as a culture ID and susceptibility, is issued, the primary corrective action is to file a quality assurance (QA) incident report. This formal process investigates the error, determines its root cause, and implements measures to prevent recurrence. It also ensures proper documentation and communication for issuing a corrected report to the clinician.

Medical Laboratory Technician Exam Practice Test

Medical Laboratory Technician Exam Practice Test

FREE Medical Laboratory Technician Questions and Answers