A provider requests that a medical assistant arrange personal care for an adult patient who needs help with meal preparation and personal care. Which of the following services should the assistant contact?

A. Capillary blood: Capillary blood can be used in some cases, especially in infants, but it is less accurate than arterial blood for measuring blood pH and gases.
B. Arterial blood: Arterial blood is the correct sample for measuring blood pH and gases (such as oxygen and carbon dioxide levels) because it reflects the gas exchange occurring in the lungs.
C. Venous blood: Venous blood is not typically used for measuring blood gases as it does not accurately reflect the oxygenation status of the body.
D. Cerebrospinal fluid: Cerebrospinal fluid is not used for measuring blood pH and gases; it is typically analyzed for conditions affecting the brain and spinal cord.

A. Allow the solution to flow from the inner to the outer canthus: This technique helps to flush out debris and contaminants while avoiding the spread of the solution into the unaffected eye.
B. Fill the syringe with 10 mL of the irrigating solution. The volume of the irrigating solution may vary, but 10 mL is not a standard quantity; the key is ensuring adequate flushing.
C. Don powdered gloves: Powdered gloves can cause irritation; non-powdered gloves are recommended for eye irrigation.
D. Direct the irrigation solution toward the cornea: The solution should not be directed toward the cornea to avoid damage; it should flow gently across the eye.