ASCP MLS QUESTIONS AND ANSWERS | LATEST VERSION | 2024/2025 | ALREADY PASSED

ASCP MLS QUESTIONS AND ANSWERS | LATEST VERSION | 2024/2025 | ALREADY PASSED A biomarker with a high specificity: accurately detects the absence of disease and has few false-positives A biomarker with high sensitivity: accurately identifies the presence of disease and hos few false-negatives A hapten is only antigenic when it is coupled with which of the following: Proteins A mojor action of angiotensin II is: increased vasocontriction A patient experiences a mild allergic reaction to a transfusion, including urticaria, erythema (skin redness), and itching. What is the most likely source of the allergen? Plasma proteins Mild allergic reactions result from a patient's hypersensitivity to soluble allergens in the plasma of the donor unit. The blood recipient forms antibodies to these allergens that are bound to IgE on mast cells and cause the release of histamines. Allergen substances may be drugs or food consumed by the blood donor. Adiponectin: Is aprotective cytokine. This cytokine is anti-inflammatory and increases insulin sensitivity. Adiponectin is usually decreased in obesity Alder-Reilly inclusions: Mucopolysaccarids Alpha thalassemia major: Alpha thalassemia Major: AKA as Hydrops Fetalis, is exhibited when all four alpha chain gene loci are deleted or non-functional. The alpha chain is crucial to the formation of hemoglobin variants that can conduct normal oxygen transport and gas exchange. The genetic code --/-- is incompatible with life. Amorphous phosphate crystals are found in: Amorphous phosphate, triple phosphate (ammonium magnesium phosphate), calcium phosphate, and ammonium urate crystals are frequently found in alkaline urine specimens Amorphous urates is found in: Acidic pH urine ANA See 2 quiz #27 Approximately what percent of the overall population is Rh negative: 15% Average life span of platelets (in the body): 9.5 days B lymphocytes and T lymphocytes are derived from: Hematopoietic stem cells Blood Gas Reference Ranges: pH: 7.35-7.45 pCO2: 35-45 mm Hg HCO3: 22-26 mM/L pO2: 85-105 mmHg Blood reaction grades; 1+, 2+, 3+ and 4+ 1+: reaction has numerous small clumps and cloudy red supernatant 2+: has many medium-sized clumps and clear supernatant 3+: has several large clumps and clear supernatant 4+: has one solid clump, no free cells, and clear supernatant Causes of Vitamin B12 deficiency: Pericious anemia in relapse, Patients on chronic hemodialysis and hodgkin disease