Final Answer:
The factors that primarily determine whether a child should undergo capillary collection via heel stick or finger stick method are: 2. Type of blood test required and 4. Child's medical history and condition.Thus option 2 and 4 are correct.
Step-by-step explanation:
The choice between heel stick and finger stick methods for capillary collection in children depends on various factors. The type of blood test required plays a crucial role. Tests that require larger blood volumes or greater precision may necessitate a heel stick due to the higher blood flow from the heel. Additionally, a child's medical history and condition are pivotal; certain conditions or medical histories might make one method more suitable or less intrusive for the child.
In practical terms, the amount of blood required for specific tests influences the choice between heel or finger sticks. For instance, a test requiring a larger blood sample might warrant a heel stick, as the heel can yield a slightly higher volume compared to the finger. Conversely, certain conditions might make one method more favorable; for instance, if a child has hand injuries or conditions affecting finger circulation, a heel stick might be more appropriate despite the type of test required.
Ultimately, while age, weight, and parental preference might influence the decision-making process, the paramount considerations are the specific blood test needs and the child's medical situation. These factors guide healthcare providers in choosing the most suitable method for capillary collection, ensuring minimal discomfort and optimal sample collection for accurate diagnostic assessments. Therefore option 2 and 4 are correct.