Test 2 Flashcards
What causes hypochromic RBCs?
When they lose hemoglobin content.
What do phospholipases do in the arachidonic pathway?
They are catalysts in the creation of arachidonic acid.
What is malaria?
A protozoan infection spread by mosquito vectors that reproduces in hepatocytes, which is then released into the blood causing hemolysis.
Which immunity exists when there is transfer of antibodies from mom to baby via the placenta or breast milk?
Natural passive acquired immunity.
What does immunoglobulin E do?
It binds to mast cells and basophils to be involved in parasitic infections and allergic reactions.
What type of immunodeficiency is x-linked hypogammaglobulinemia?
Congenital, humoral immunodeficiency.
What is the average level of CD4 in the human body?
600-1500.
What are two expected lab results in someone with macrocytic anemia?
RBCs <4 million, and MCV >95.
What are the two primary ways antibodies defeat microbes?
Neutralization and opsonization.
What are four signs and symptoms associated with diphtheria?
Sore throat, pyrexia, and a pseudomembrane across the tonsils or throat.
When do the signs and symptoms of shock begin to appear?
When systolic hypotension is near 80 or 90.
What is Karposi’s sarcoma?
A type of malignant skin tumor that invades immunocompromised people.
What creates antibodies?
B-cells after they differentiate into plasma cells.
What are two expected lab results in someone with normocytic anemia?
RBCs <4 million, and MCV 80-95.
What is giardiasis?
A parasitic/protozoan GI infection that impairs fat absorption, causing greasy, frothy, foul-smelling, non-bloody diarrhea (along with pyrexia and dehydration).
What is a rare condition in which there is slow development of hyper-proliferation of bone marrow stem cells?
Primary polycythemia.
What is the condition that “coats” bacteria, promoting phagocytosis by optimizing recognition and “digestibility” of antigen for phagocytes known as?
Opsonization.
What are the two proteins on the viral envelope of influenza?
Neuraminidase and hemagglutinin.
What are five signs and symptoms associated with rubeola?
Dense, red maculopapular rash that starts on the head before traveling downwards, pyrexia, cough, rhinorrhea, and conjunctivitis.
What is the percentage of RBCs in the blood called?
Hematocrit.
People with type A blood have which kind of antigens?
They have “anti-B” immunoglobulins.
What is a protozoan infection spread by mosquito vectors that reproduces in hepatocytes, which is then released into the blood causing hemolysis known as?
Malaria.
What occurs when there is a known or suspected infection and the person is suffering from SIRS?
Sepsis or septicemia.
What is the birth pathway for prostaglandins?
The arachidonic pathway.