Mixed Deck — All Medical Technologist Test Topics Flashcards
100 cards from real Medical Technologist Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 20 Mixed Deck — All Medical Technologist Test Topics flashcards as text
A speckled ANA pattern with high-titer anti-U1 RNP antibodies is the hallmark of which autoimmune disease?
Answer: Mixed connective tissue disease (MCTD)
Anti-U1 RNP antibodies producing a speckled ANA pattern are the defining serological marker of mixed connective tissue disease.
Meningitis characterized by high total protein, low glucose levels, lactate levels below 35mg/dL
Answer: fungal meningitis
Fungal meningitis is an inflammation of the meninges caused by a fungal infection, and its cerebrospinal fluid (CSF) analysis exhibits distinct characteristics. The description accurately lists these: high total protein, low glucose levels (as fungi consume glucose), and lactate levels typically below 35 mg/dL, which helps differentiate it from bacterial meningitis where lactate levels are usually much higher.
Increase in number of neutrophilic leukocytes in blood/tissue. aka neutrocytosis, neutrophil leukocytosis
Answer: neutrophilia
Neutrophilia is the medical term for an elevated count of neutrophils, a type of white blood cell, in the blood or tissues. Neutrophils are vital components of the immune system, primarily responsible for fighting bacterial and fungal infections. An increase in their numbers, also known as neutrocytosis or neutrophil leukocytosis, commonly signals an active infection, inflammation, or a physiological stress response in the body.
A positive crossmatch occurs when donor red cells are incompatible with which patient component?
Answer: Patient serum or plasma
The major crossmatch tests donor RBCs against recipient serum/plasma to detect antibodies that could destroy transfused cells.
In a competitive immunoassay, what is the relationship between patient analyte concentration and measured signal?
Answer: Inverse: higher analyte produces lower signal
In competitive immunoassay, patient antigen competes with labeled antigen for limited antibody sites; more patient antigen displaces more label, reducing the measured signal.
Which enzyme is the MOST sensitive and specific marker for acute myocardial infarction?
Answer: Troponin I or T
Cardiac troponins (I and T) are the gold-standard biomarkers for myocardial injury due to their high cardiac specificity and sensitivity.
Elevated serum alkaline phosphatase (ALP) with normal transaminases is MOST consistent with which condition?
Answer: Obstructive jaundice or bone disease
An isolated ALP elevation suggests cholestasis or bone disease; GGT elevation alongside confirms hepatic origin.
What is the main difference between a medical technologist and a lab technician?
Answer: The extent of their training and the complexity of tasks they can perform
The primary distinction between a medical technologist (Clinical Laboratory Scientist) and a lab technician (Clinical Laboratory Technician) lies in their educational background and the complexity of tasks they are qualified to perform. Medical technologists generally hold a bachelor's degree and perform advanced tests, interpret results, and troubleshoot instruments, while technicians typically have an associate's degree and perform more routine tests under supervision.
The coefficient of variation (CV%) is used in laboratory medicine to express:
Answer: Imprecision as a percentage relative to the mean
CV% = (SD/mean) × 100, expressing the standard deviation as a percentage of the mean to allow comparison of imprecision across different analytes or concentrations.
The 19th century saw the advent of prosthetics.
Answer: FALSE
The statement is false because the history of prosthetics dates back much further than the 19th century. Ancient civilizations, such as the Egyptians, are known to have created early forms of prosthetic devices, with evidence of prosthetic toes dating back over 3,000 years. This demonstrates that the concept of prosthetics is ancient.
WBC's most prevalent granulocyte form. most crucial immune system component
Answer: neutrophil
Neutrophils are the most prevalent type of white blood cell (WBC) and the most crucial granulocyte form in the immune system. They serve as the body's first line of defense against bacterial and fungal infections. Neutrophils rapidly migrate to sites of inflammation and infection, where they engulf and destroy pathogens through phagocytosis, making them indispensable for host protection.
Which of these claims regarding IVDs is untrue?
Answer: All of the above are false
In Vitro Diagnostics (IVDs) are tests performed on samples from the human body, not directly on the patient, to detect diseases or conditions. They do not directly treat patients, and while samples come into contact with the IVD, the patient typically does not. Crucially, IVDs are vital for determining patient treatment by providing essential diagnostic information. Therefore, all the claims (A, B, and C) are false.
Which technique uses fluorescent-labeled antibodies to detect antigens in tissue sections or cells?
Answer: Direct immunofluorescence
Direct immunofluorescence uses fluorochrome-conjugated antibodies applied directly to tissue or cells to visualize specific antigens under a fluorescence microscope.
Schistocytes on a peripheral blood smear are associated with which condition?
Answer: Microangiopathic hemolytic anemia
Schistocytes (fragmented red cells) result from mechanical destruction of RBCs seen in TTP, HUS, and DIC.
Which immunoglobulin class is the FIRST to be produced during a primary immune response?
Answer: IgM
IgM is the first antibody produced during a primary immune response before class switching to IgG and other isotypes occurs.
What does the term 'proteinuria' mean?
Answer: Presence of protein in urine above normal amounts
Proteinuria is the abnormal excretion of protein in urine, often a sign of renal disease.
In 1924, American scientists invented the first syringe.
Answer: FALSE
The statement is false. The concept and use of syringes predate 1924 significantly, with early forms described by ancient Greeks and Romans. The modern hypodermic syringe, for injecting substances, was notably developed in the mid-19th century by inventors like Charles Gabriel Pravaz and Alexander Wood in 1853, long before 1924.
Which body fluids or specimens do medical technologists test?
Answer: Blood, urine, stool, amniotic fluid, cerebrospinal fluid, and others
Medical technologists analyze a comprehensive range of biological specimens to detect disease markers and assess health status. This includes common samples like blood, urine, and stool, as well as more specialized body fluids such as amniotic fluid, cerebrospinal fluid, synovial fluid, and various tissue samples. Their expertise covers virtually any human biological material used for diagnostic testing.
C-reactive protein (CRP) is produced primarily by which organ during the acute phase response?
Answer: Liver
CRP is an acute phase protein synthesized by hepatocytes in the liver in response to IL-6 released during inflammation or infection.
Which term describes the measure of a test's ability to detect small quantities of an analyte?
Answer: Analytical sensitivity
Analytical sensitivity, often expressed as the limit of detection, is the lowest measurable concentration of an analyte.