AMT MLT (MEDICAL LABORATORY TECHNICIANS) EXAM | REAL EXAM QUESTIONS AND ANSWERS WITH RATIONALES | LATEST UPDATE 2026/2027 | GUARANTEED PASS | GRADED A+.

AMT MLT (MEDICAL LABORATORY TECHNICIANS) EXAM | REAL EXAM QUESTIONS AND ANSWERS WITH RATIONALES | LATEST UPDATE 2026/2027 | GUARANTEED PASS | GRADED A+. How is the Mean Cell Volume calculated? A) (Hemoglobin/RBCs) x 10 B) (Hemoglobin/ RBCs) x 100 C) (Hematocrit %/ RBCs) x 10 D) (Hematocrit % / Hemoglobin) x 100 C) (Hematocrit %/ RBCs) x 10 The Mean Cell Volume, or MCV, can be calculated by dividing the hematocrit (%) by the red blood cell count and multiplying by 10. The MCV describes the volume, or size, of the red blood cell population. The Mean Cell Hemoglobin, or the MCH, can be calculated by dividing the hemoglobin (g/dL) by the red blood cell count and multiplying by 10. The MCH represents the average weight of hemoglobin in red blood cells. The Mean Cell Hemoglobin Concentration, or the MCHC can be calculated by dividing the hemoglobin (g/dL) by the hematocrit (%) and multiplying by 100. The MCHC is the ratio of hemoglobin mass to volume of RBCs. Which of the following is characteristic of an exudate effusion? A) Leukocyte count greater than 1,000 WBC/microliter B) Clear appearance C) Protein concentration less than 3.0g/dL D) Absence of fibrinogen A) Leukocyte count greater than 1,000 WBC/microliter Effusion is the increase of fluid between the serous membranes due to disruption of the mechanisms of formation and reabsorption of serous fluid. Exudates are caused by conditions affecting the particular cavity such as infections and malignancies. Exudate effusion characteristics include: - Leukocyte count greater than 1,000WBC/microliters - Fluid: Serum Protein ratio 0.5 - Yellow or cloudy appearance - Possible spontaneous clotting A mean value of 100 mg/dL and a standard deviation 1.8mg/dL were obtained from a set of glucose measurements on a control solution. Based on 95% confidence interval (in mg/dL), what would be the calculated 2 SD upper and lower limits for this control? A) 94.6 to 105.4 B) 96.4 to 103.6 C) 97.3 to 102.7 D) 98.2 to 101.8 B) 96.4 to 103.6 The 95% confidence interval can also be described as the probability that 95% of the time, the quality control will fall within +/- 2 standard deviation of the mean. In this case, 2 standard deviations would be calculated as 1.8mg/dL multiplied by 2 which equals 3.6mg/dL. Therefore, the calculated 2SD (3.6mg/dL plus and minus the mean) based on the 95% confidence interval would be 96.4 - 103.6. Which of the following sources of error will give a false negative result in antihuman globulin testing? A) Low pH of saline B) Dirty glassware C) Samples collected in gel separator tubes D) Refrigerated specimen C) Samples collected in gel separator tubes A low pH of saline is indicated as a false negative source of error in antihuman globulin testing. Dirty glassware, samples collected in gel separator tubes, and refrigerated specimens are all indicated as false positive sources of error in antihuman globulin testing. Lymphocyte pleocytosis refers to a(n) _________ in a CSF when compared to a normal shape. A) Increased number of lymphocytes B) Decreased number of lymphocytes C) Normal number of lymphocytes D) Absence of lymphocytes A) Increased number of lymphocytes The presence of a greater than normal number of lymphocytes in the spinal fluid is termed lymphocyte pleocytosis. Typically, the majority of cells seen in a normal adult CSF specimen are lmyphocytes and monocytes (7:30 ratio). This ratio is reversed in children. The element that is indicated by the arrow is a: A) Red blood cell cast B) Granular cast C) Hyaline cast D) Renal tubular epithelial cast A) Red blood cell cast This is a red blood cell cast. RBCs can be identified within the matrix of the cast. The identification of the cast as a red blood cell cast is supported by the appearance of RBCs outside of the cast. Granular casts are composed of plasma protein aggregates and cellular remnants. Their presence in the urine may be of pathologic or onpathologic significane. Granular casts appear as coarse or fine granules in cast matrix. Hyaline cats generally appear colorless, homogeneous, and transparent with rounded ends. They can also be seen as a result of dehydration, after diuretic therapy, in renal disease, and transiently as a result of exercise. Renal tubular epithelial (RTE) casts are cause by the sloughing of necrotic renal tubular cells due to advance tubular destruction. RTE cells are usually seen as a part of the cast. Which of the following donors could be accepted for blood donation? A) 22-year female who is currently pregnant B) 40-year old female who lived in London from C) 44-year old male who used a needle to administer nonprescription drugs D) 24-year old man who had a tooth extraction two months ago. D) 24-year old man who had a tooth extraction two months ago. A tooth extraction that occurred two months ago would not be a reason for rejection as a blood donor. Potential donors who are currently pregnant or have been pregnant in the past 6 weeks are deferred from donating blood. Potential donors who have spent time in the United Kingdom or Europe are at risk for variant Creutzfeldt-Jakob disease and are deferred from donation. All of the following statements are true regarding the significance of performing direct microscopic examinations of specimens for culture, EXCEPT: A) Provide a quality control comparison to the culture for actual isolates recovered. B) It can provide the physician with a rapid presumptive diagnosis C) It may serve as a guide for selecting appropriate culture media based on microorganisms observed. D) Allows the microbiologist to discard the sample and cancel testing if no organisms are observed. D) Allows the microbiologist to discard the sample and cancel testing if no organisms are observed. The microscopic examination does not determine whether or not a culture is going to grow the organism, as the culture is oftentimes able to enhance organisms that may not have been visible via gram stain, but will growl well in culture media. The direct microscopic examinations of specimens for culture do provide a quality control comparison to the culture for actual isolates recovered, it can provide the physician with a rapid presumptive diagnosis, and it may serve as a guide for selecting appropriate culture media based on microorganisms observed. All other cells are lymphocytes but do not have the receptors to which EBV attaches to itself. Upon centrifugation, a cerebrospinal fluid (CSF) sample supernatant exhibited xanthochromia. The image is a Wright-Giemsa stained smear that was made from that CSF sample. What condition is probably related to these macroscopic and microscopic findings? A) Previous subarachnoid hemorrhage B) Traumatic tap C) Leukemia D) This is a normal microscopic finding for CSF specimen A) Previous subarachnoid hemorrhage Xanthochromia may be an indication of previous subarachnoid hemorrhage (SAH). The presence of dark, granular, iron-laden hemosiderin deposits, indicated by the blue arrows, and yellow, crystalline, iron-free hemotoidin crystals ( red arrows) in macrophages, point to an SAH several hours to days prior to CSF analysis. Macrophages begin to appearing CSF approximately two hours after bleeding occurs into the central nervous system. The macrophages start to phagocytize red blood cells (RBCs). As the RBCs degenerate further, the breakdown products are seen in the phagocytic cells as hemosiderin deposits or hematoidin crystals. The appearance of hemosiderin and hemtoidin crystals appx 18 hours following an SAH and may be present in the CSF for several months. If a CSF sample from a traumatic tap is centrifuged, the supernatant would be clear rather than xanthochromic, if the sample was analyzed within one hour of sample collection. Many RBCs would be present, but hemosiderin deposits an hemotoidin crystals would not be present. These findings are also not associated with leukemia and they are not normal findings in a microscopic CSF specimen. What abnormality is suggested by the pattern on the right? A) Alpha-1-antitypsin deficiency B) X-linked agammaglobulinemia C) Nephrotic syndrome D) Acute inflammation B) X-linked agammaglobulinemia The diagram on the right indicates a slump in the entire gamma region. This suggests an immunodeficiency such as X-linked agammaglobulinemia (Bruton type), which is particularly brutal. These individuals do not generate mature B cells and completely lack antibodies in their bloodstream. Alpha 1 antitrypsin deficiency would be visible as a depressed alpha 1 band. On the other hand, acute inflammation would increase the levels of alpha 1 antitrypsin, increasing the height of the alpha 1 band. Nephrotic syndrome would be manifested by a decrease of all proteins, especially albumin. Thank you for Purchasing this exam Study Guide. We provide high-quality academic materials to help students excel in exams. Our other Services include but not limited to: academic research, University & College assignments writing, essay writing, Online Classes, and research projects. Our services are reliable, affordable, and plagiarism-free. All the Best in your Exam. For more information; Contact us at: or 0R +254