Question

alkalemia
alkalemia means there is a lower than normal amount of in the blood, resulting
in a higher blood ph.
hco-
h+
oh-

Explanation:

To determine the correct ion for alkalemia:

1. Recall the definition of pH: \( \text{pH} = -\log[\text{H}^+] \). A higher pH means a lower concentration of \( \text{H}^+ \) (hydrogen ions), as the negative logarithm of a smaller number is larger.
2. Analyze the options:

• \( \text{HCO}^- \): Bicarbonate is involved in acid - base balance but is not the direct determinant of pH in this way.
• \( \text{H}^+ \): A lower \( [\text{H}^+] \) leads to a higher pH, which is consistent with alkalemia.
• \( \text{OH}^- \): While \( \text{OH}^- \) is related to alkalinity, the primary factor in blood pH regulation related to the "lower than normal" ion for alkalemia is \( \text{H}^+ \) (since pH is defined based on \( \text{H}^+ \) concentration).

Answer:

H+