(A) Sitting with the legs crossed at the ankles does not interfere with circulation or create pressure points. (B) TED stockings will help to reduce the varicosity by supporting the vein. Stockings must be applied with legs elevated. (C) Support pantyhose help to reduce the varicosity by supporting the vein. They also provide support to the uterus and allow for better return circulation. Hose must be applied like TED stockings. (D) Knee-high stockings create constriction and pressure points that interfere with circulation in the lower extremities.

Explanation
(A) Respiratory alkalosis is determined by elevated pH and low PaCO2. (B) Respiratory acidosis is determined by low pH and elevated PaCO2. (C) Metabolic alkalosis is determined by elevated pH and HCO3.(D) Metabolic acidosis is determined by low pH and HCO3.

Explanation
(A) The O2 content of whole blood is determined by the partial pressure of oxygen (PO2) and the oxygen saturation. The pulse oximeter does not measure the PO2. (B) The pulse oximeter is a noninvasive method of measuring the arterial oxygen saturation. (C) The PO2 is the amount of O2 dissolved in plasma, which the pulse oximeter does not measure. (D) The affinity of hemoglobin for O2 is the relationship between oxygen saturation and PO2 and is not measured by the pulse oximeter.

Explanation/Reference:
Explanation:
(A) This answer is a miscalculation. (B) This answer is a miscalculation. (C) 1.33 mEq = 1 mL, then 1.5 mL X=1.99, or 2 mEq. (D) Information is adequate for calculation.

(A) A decrease in blood pressure sometimes occurs with chlorpromazine. It would not be a factor influenced by a picnic in the park. (B) Protection from the sun is important in clients taking phenothiazines because they burn easily and severely. (C) An appetite increase sometimes occurs with chlorpromazine. It would not be affected by a picnic. (D) Dryness of the mouth may occur at any time and is not affected by the picnic outing.