ASCP MEDICAL LABORATORY TECHNICIAN - MLT(ASCP) - ASCP-MLT Exam Practice Test
Question 1
Which immune elements are involved in a POSITIVE TB skin test?
Correct Answer: B
Question 2
India ink can aid in the visualization of the polysacchride capsules of yeast such as Cryptococcus neoformans.
Micro
India Ink is used to:
Micro
India Ink is used to:
Correct Answer: A
Question 3
Alkaline phosphatase, or ALP, is present in kidneys, liver, intestines, bone, and the placenta. The liver makes the largest amount of ALP. Some of the conditions associated with increased levels of ALP include: damaged liver cells, rapid bone growth (during puberty), bone diseases, or a disease that affects how much calcium is in the blood (hyperparathyroidism), and vitamin D deficiency.
Chemistry
Isoenzymes of alkaline phosphatase occur in:
Chemistry
Isoenzymes of alkaline phosphatase occur in:
Correct Answer: A
Question 4
First, determine the number of WBC's from the hemocytometer as follows:
WBC count = (dilution ratio x # of cells counted x 10) / (# mm2 area counted) Then: WBC count = (20 x 100 x 10) / (8) = 2500 WBC/mm3 (or 2500 WBC/uL or 2.5 x 103 WBC/uL) Next, to find the WBC count per liter, multiply the WBC count/uL by the number of uL/L (there are 106 uL/L) So: (2.5 x 103 WBC/uL) x (106 uL/L) = 2.5 x 109 WBC/L Hematology A 1:20 dilution is made for a manual WBC count. The four corner squares on both sides of a hemocytometer are counted. A TOTAL of 100 cells are counted in that area. What is the white blood cell count in terms of a liter (? x 10^9/L)?
WBC count = (dilution ratio x # of cells counted x 10) / (# mm2 area counted) Then: WBC count = (20 x 100 x 10) / (8) = 2500 WBC/mm3 (or 2500 WBC/uL or 2.5 x 103 WBC/uL) Next, to find the WBC count per liter, multiply the WBC count/uL by the number of uL/L (there are 106 uL/L) So: (2.5 x 103 WBC/uL) x (106 uL/L) = 2.5 x 109 WBC/L Hematology A 1:20 dilution is made for a manual WBC count. The four corner squares on both sides of a hemocytometer are counted. A TOTAL of 100 cells are counted in that area. What is the white blood cell count in terms of a liter (? x 10^9/L)?
Correct Answer: D
Question 5
Epidemiology studies only infectious diseases that impact humans
Correct Answer: A
Question 6
HbsAg is positive in acute and chronic Hepatitis B infections, since the antigen is found on the actual surface of the virus. HbeAg is present in the blood when the hepatitis B viruses are replicating, indicating an active infection. Anti-Hbc IgM is present due to the immune response to the presence of the hepatitis core antigen and indicates an acute infection. Anti-HBs is generally interpreted as indicating recovery and immunity from hepatitis B virus infection, according to the CDC.
Given the following results, what is the immune status of the patient?
HbsAg: positive
HbeAg: positive
Anti-HBc IgM: positive
Anti-HBs: negative
Given the following results, what is the immune status of the patient?
HbsAg: positive
HbeAg: positive
Anti-HBc IgM: positive
Anti-HBs: negative
Correct Answer: B
Question 7
The microscopic features shown here represent Scopulariopsis species. In most instances, particularly if a patient does not have underlying immunologic or hematologic disease, Scopulariopsis species should be considered a contaminant when recovered from a sputum specimen. However, if there is clinical or X-ray evidence of mycotic pulmonary infection, additional daily induced sputum specimens should be obtained.
If Scopulariopsis species or any other hyaline mold is recovered from two or more successive specimens, its potential as a pathogenic agent should be considered. Scopulariopsis species have been reported as the agents of pulmonary fungus ball infections in patients with preexistent cavities and as a cause of pneumonia in patients with leukemia.
Invasive pulmonary disease by this agent has not been reported.
The fungus illustrated in this photomicrograph was recovered from an induced sputum specimen from a 74 year old man with chronic obstructive pulmonary disease. This isolate is most likely:
If Scopulariopsis species or any other hyaline mold is recovered from two or more successive specimens, its potential as a pathogenic agent should be considered. Scopulariopsis species have been reported as the agents of pulmonary fungus ball infections in patients with preexistent cavities and as a cause of pneumonia in patients with leukemia.
Invasive pulmonary disease by this agent has not been reported.
The fungus illustrated in this photomicrograph was recovered from an induced sputum specimen from a 74 year old man with chronic obstructive pulmonary disease. This isolate is most likely:
Correct Answer: B
Question 8
An automated method for measuring chloride which generates silver ions in the reaction is called:
Correct Answer: B
Question 9
Calcium oxalates can be found in normal urine in varying pH levels. Ammonium biurate and triple phosphate can be found in normal alkaline urine. Leucine crystals are always abnormal, and can be found in maple syrup urine disease.
Which one of the following crystals is NOT found in normal urine?
Which one of the following crystals is NOT found in normal urine?
Correct Answer: A
Question 10
Bacterial contamination can manifest itself in several ways including: the presence of clots, darker purple-black color of blood unit, unit can appear cloudy, hemolysis may be present.
During routine inspection, a unit of unexpired blood was noticed to have a black color with numerous small clots. What is the likely cause for this observation?
During routine inspection, a unit of unexpired blood was noticed to have a black color with numerous small clots. What is the likely cause for this observation?
Correct Answer: C
Question 11
The characteristic that distinguishes vancomycin-resistant Enterococcus faecium and Enterococcus faecalis from other Enterococcus species is their lack of motility.
Enterococci are all catalase-negative. Growth on bile esculin agar and in 6.5% salt broth are two characteristics that have commonly been used to identify Enterococcus to the genus level. A positive esculin in combination with a positive PYR reaction is another approach to presumptive identification.
Which one of these characteristics distinguishes vancomycin-resistant Enterococcus faecium and Enterococcus faecalis from other Enterococcus species?
Enterococci are all catalase-negative. Growth on bile esculin agar and in 6.5% salt broth are two characteristics that have commonly been used to identify Enterococcus to the genus level. A positive esculin in combination with a positive PYR reaction is another approach to presumptive identification.
Which one of these characteristics distinguishes vancomycin-resistant Enterococcus faecium and Enterococcus faecalis from other Enterococcus species?
Correct Answer: A
Question 12
The division of Department of Health and Human Services (DHHS) responsible for protecting public health by ensuring the safety and efficacy of foods, drugs, biological products, medical devices, and cosmetics is:
Correct Answer: B
Question 13
Patient's with diseases such as congential hemolytic anemias and aplastic anemias require frequent transfusions. Each unit of red cells contains 225 mg of iron, which puts these patients at risk for iron overload.
Blood Bank
Patients with diseases that require chronic transfusions are at risk for iron overload.
Blood Bank
Patients with diseases that require chronic transfusions are at risk for iron overload.
Correct Answer: A
