text: Acid-base status of an organism is determined by the extracellular fluid (ECF) hydrogen ion concentration [H+] since pH is equal to minus log of [H+] i.e. pH = -log[H+]. Normal pH of human blood is 7.40 (7.35-7.45). Acidosis raises ECF [H+] thereby lowering pH  whereas<unk>  lowers ECF [H+] thereby raising pH of the ECF.<unk>  is an acid-base disorder, primarily a decrease in partial pressure of carbon dioxide in arterial blood means PaCo2 [normal PaCo2 is 40 mm Hg on average with range between 35-45mm Hg (4.7-6.0kPa)] with or without compensatory decrease in serum bicarbonate [HCO3-] (normal bicarbonate is 22-30mEq/L in arterial blood gas analysis) and pH being alkaline (normal pH of blood is 7.35-7.45).
option_0: Respiratory alkalosis
option_1: Respiratory acidosis
option_2: Metabolic alkalosis
option_3: Contraction alkalosis
option_4: Hypercapnia
option_5: Acidosis
option_6: Metabolic acidosis
option_7: Hypobicarbonatemia