Module 5 - Volume Requirement Calculations Flashcards
Define Iatrogenic anemia
Type of anemia // results from multiple blood collections in short period
In what type of patients is iatrogenic anemia common in?
- geriatric
- pediatric
- underweight patients
Why are geriatric patients at risk of iatrogenic anemia?
- Due to medications suppressing bone marrow production, increasing risk of anemia
- decrease in nutritional intake, especially in extreme weight loss
- likely see multiple healthcare professionals (req. multiple blood collections)
What makes cancer patients at risk of iatrogenic anemia?
- Cancer treatments
- Effect of disease
What makes pediatric patients in risk of iatrogenic anemia?
- Premature
- Low birth weight
//
due to low volume of blood
If you have second guesses around a venipuncture request that seems excessive, what can you do?
- Check w/ the nurse or provider to ensure patient will not be at risk
- Contact provider if medical requisition req. blood tests collecting more than recommended amount
If a medical requisition form exceeds recommended amount of blood collected, what will a provider do?
- Order different tests
- Reduce number of tests
- Order only the most essential tests
For infants, blood collection should not exceed __% of blood volume over 8-week period.
10
For adults, blood collection should not exceed more than ____ mL of blood volume.
100
Collecting more than 100 mL of blood can result in what in adults?
Decreased hemoglobin or hematocrit
Blood specimen collection should be limited to 1% to [__] within a 24 hour period for pediatric patients.
1% to 5%
Critically ill patients over a 8 week period should not have blood volume loss exceed __%
10%
How do you convert a infant’s pounds to kilograms?
- Convert the infant’s pounds to kilograms, so divide their pounds by 2.2
ex: 6.2 divided by 2.2 = 2.82 kgs
How to convert a infant’s kilograms to determine its mililitiers?
- Kgs x 100
ex: 2.82 kgs -> 282 mL
How to convert a infant’s milliliters to liters?
- mL divided by 1,000
ex: 282 mL -> 0.28 L
How is blood volume measured?
By liters
On each tube, you should document…
amount of blood collected in each tube
Collect only the _______ required amount of blood to avoid causing iatrogenic anemia.
minimum
Iatrogenic anemia can lead to…
shortness of breath, fatigue, & need for blood transfusions
