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Nur 195 Test 2: Questions And Accurate Answers
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Nur 195 Test 2: Questions And Accurate Answers
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Nur 195 Test 2: Questions And Accurate AnswersHematologic and Immune Function Right Ans - found under the CBC panel
How many liters of blood are in the body? Right Ans - 5-6 liters
RBCs live in the body Right Ans - for 120 days
Erythrocytes Right Ans - small RBCs
Leukocytes Right Ans - white blood cells
Thrombocytes Right Ans - platelets
Hematopoiesis Right Ans - production of blood cells in the bone marrow
Hemostasis Right Ans - stops or control bleeding, clotting mechanism
stem cells Right Ans - unspecialized cells renew themselves for long periods of time by cell division
Myeloid Right Ans - bone marrow
lymphoid Right Ans - lymph tissue (node)
antibodies and antigens Right Ans - 2 important components of the immune system
What do you assess for in patients with a low hemoglobin and hematocrit??? Right Ans - Fatigue
Dyspnea
Activity intolerance
Difficulty concentrating
Pallor
Jaundice- sickle cell anemia
Tachycardia tinnitus
What do you assess for in patients with a low white blood cell count? Right Ans - Absolute neutrophil count (ANC)
<500/mm3 Severe neutropenia
Total WBC (%segs +%bands) =ANC
Signs of infection
Neutrophils Right Ans - Most abundant WBC are the 1st to arrive for defense
Immunocompromised patients who normally get neutropenia Right Ans - patients on certain medicines
HIV/AIDS cancer
What do you assess for in patients who are at risk for bleeding? Right Ans - *Platelet count *Petechiae- tiny red spots *Ecchymosis-bleeding (looks like a bruise under the skin) pt normally doesn't know where bruise came from *Bleeding gums
*Hypotension-indicate internal bleeding *Neuro changes
Thrombocytopenia Right Ans - Platelet count < 100,000/mm3 (potential for bleeding)
What do you assess for while caring for patients with autoimmune disorders? Right Ans - *Non specific
*Impaired wound healing
*Recurrent infections
*Overreaction of autoimmune system-when the body attacks itself *Medical history
*Family history
*Nutrition status *Medications- immunosuppressants (steroids)
Gerontologic Considerations related to hematologic and immune function Right Ans - Higher risk for anemia because bone marrow is depressed, happens with less exercise Risk for leukopenia
Increase risk for infection
Decrease response to antigens (the fight starters)
CBC (complete blood count) diagnostic tests Right Ans - WBC with differential
Hemoglobin and Hematocrit
Platelets
Red blood cells (RBC)
Peripheral blood smear diagnostic test Right Ans - Mean corpuscular volume (MCV)
Diagnostic tests related to hematologic and immune function Right Ans - Bone marrow aspiration and biopsy
Skin testing
Hgb (male) Right Ans - 14-18 g/dL
Hgb (female) Right Ans - 12-16 g/dL
Platelet count should be Right Ans - 150,000-400,000/mm3
WBC count should be Right Ans - 5,000-10,000/mm3
RBC count should be Right Ans - 4-5.5 million
Iron deficiency anemia Right Ans - results when there is not enough iron to
build Hgb for RBCs
Due to Diet Blood loss
Chronic ETOH ( alcohol abuse) low (MCV) mean corpuscular volume
vitamin B12 deficiency Right Ans - pernicious anemia
Increased intake or decreased absorption from GI tract
s/sx of anemia
neurologic symptoms (paresthesias of extremities)
Macrocytic ( RBCs or erythrocytes are larger than their normal volume)
low reticulocyte count
high (MCV) mean corpuscular volume
Malabsorption
Intrinsic Factor
Treat underlying cause & replace
folic acid deficiency Right Ans - megaloblastic anemia
cause of white hair at an early age ETOH (alcohol) use
aplastic anemia Right Ans - failure of blood cell production in the bone marrow
Stem cell production
low WBC, RBC, and platelets anemia
infection
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