Show:
ESR
Hematological Studies
Lipids
Renal
Potpourri
100
What does the ESR stand for?
Erythrocyte sedimentation rate
100
What is a normal platelet count?
150,000 to 400,000 mm3
100
What are the main categories of lipids?
Total cholesterol, LDL, HDL, triglycerides
100
Renal labs for older adults change only slightly because the body compensates for decreased renal function. However, lab findings may be unreliable in what 4 situations?
Reduced lean body mass, excessive intake of protein, metabolic alterations, and strenuous physical activity before exercise.
100
Why are there usually no age-adjusted lab value ranges for older adults?
Too many variables and factors that influence lab results, such as chronic conditions and medications.
200
Also called:
sed rate
200
Red blood cells themselves do not change with aging. What process about RBCs changes?
The speed at which new blood cells can be produced in late life is reduced.
200
What are the normal values for each?
Total- <200 LDL- <100 HDL- <40, >60 TG- <150
200
What does a blood urea nitrogen (BUN) measure?
Renal function and glomerular filtration rate (GFR).
200
Why would general labs be ordered at a routine annual physical?
They are helpful in promoting maximum health, especially in the long-term care setting.
300
What is measured:?
How fast an RBC falls to the borrow of saline solution or plasma.
300
Elevations in hematocrit and hemoglobin (H&H) may be the result of a pathological process but are more often an early sign of:
Hypovolemia from malnutrition, dehydration, or severe diarrhea.
300
True or false- Cholesterol levels change throughout the day and are influenced by position.
True
300
What causes the BUN to be elevated?(5)
Shock, dehydration, CHF, starvation, certain drugs
300
If a nursing home resident has become more confused but labs are all normal, what would the nurse recommend?
A UA. Why?
400
What is it used to measure?
The degree of inflammation, infection, necrosis, infarction, or advanced neoplasm.
400
When does decreased marrow reserve present a problem?
When blood loss occurs.
400
An unexpected low serum cholesterol level is indicative of:
Malnutrition
400
Creatinine levels are decreased in normal aging because of what?
Decreased muscle mass
400
What is a PSA and what is it for?
Prostate-specific antigen, a screening test for prostate cancer
500
When is it elevated?
In the presence of inflammatory conditions, such as rheumatoid arthritis, polymyalgia rheumatica, temporal arteritis.
500
What is the physiological implication of decreased marrow reserve?
When blood is lost, it takes longer to be replaced, and can result in anemia, risk for falls, delirium, etc.
500
Increased triglycerides can happen because of what 2 conditions?
Chronic renal failure and poorly controlled diabetes
500
What meds are considered nephrotoxic?
Allopurinol, amino glycosides, ACEIs, NSAIDS.
500
What is a BNP and what is it for?
Brain natriuretic peptide that is released by the ventricles of the heart in response to excessive stretching and pressure, or CHF.