Sickle Cell Worksheet Flashcards
Hemolytic Anemia~
destruction of blood cells#
Hemoglobin S~
abnormal hemoglobin
caused by mutation in beta-globin gene
causes RBC to distort into a rigid sickle shape#
Autosomal recessive~
non-sex linked gene that requires two copies to express phenotype#
Sickle Cell Disease~
several diseases that result from abnormal hemoglobin genes#
Sickle Cell Trait~
When a person inherits an abnormal hemoglobin gene and a regular one resulting in some percentage of their hemoglobin affected but generally doesn’t cause observable disease#
Reticulocyte~
New RBC that hasn’t matured yet
makes up 0.5% to 2.5%
High count indicates loss of RBCs
Low count indicates vitamin B or marrow deficiencies#
Systolic Murmur~
Woosh between s1 and S2
indicates:
HTN
Defects
valve disorders
Can happen in SCD due to obstructed blood flow#
What can lead to decreased O2 and SC crisis~
Viral illness
Bacterial illness
Exercise
High altitude
Smoking
Drugs#
Bone Marrow Transplant procedure~
- autologous or allogenic
- chemo or radiation to kill bad cells
- donor stem cells collected via needle or peripheral blood
- infuse healthy cells - travel to bone marrow and replicate - grows healthy cells
- Hospital stay for monitoring#
Pathophysiology of SCD~
Abnormal hemoglobin is triggered
Sickling causes sticking together
Occlusion leads to clots
decreased O2
Jaundice from hemolysis
and pain#
Pathophysiology of Autosomal recessive SCD~
If only one gene for Hemoglobin S is passed on, a child will have SCTrait
If two people with SCT conceive, 25% will have no HgbS, 50% will have one HgbS (and therefore SCT), and 25% will have SCDisease#
Why fluid status matters~
occlusive illness is exacerbated by dehydration and more viscous blood.
Adequate fluids are essential to keep blood flowing and increasing perfusion#
Cardiac assessments~
Rhythms
dysrhythmias
pressure fluctuation (occlusion) HTN, HOTN, deficits between areas
pulses#
Why jaundice~
HgbS is short lived, and crisis increases hemolysis
the bilirubin builds up faster than liver can filter#
Face bones are~
Englarged from perpetual creation of more RBCs to replace those lost from SCD#
Priority nursing interventions~
Monitor labs
Monitor vitals
Meds
Pain assessments
Neuro assessments
I&O
Fluid balance (PO/IV)
O2 PRN
Vascular assessments#
Client Education topics~
Diet: decrease foods that contribute to poor health outcomes
avoid vitamin deficiencies
Avoid drugs, smoking, booze
Avoid temperature extremes
Avoid getting sick (crowds and sick people)
Vaccinations up to date
Sleeeeeeep
Hydrate
Regular exams#
Normal Hgb~
12-17.5#
Normal Hct~
36-54#
Normal RBC~
4.2-6.1 million#
Normal MCV~
80-100#
Normal RDW~
11.5%-14.5%#
Normal Retic Count~
0.5%-2.5%#
Normal WBC~
4k-11k#