Explanation
(A) The nurse must assess the labor status to determine if birth is imminent. The nurse may note perineal bulging, crowning, or birth of the head to ascertain labor status. (B) Assessing uterine contractions is one intervention to ascertain labor status. Based on the client's cry, it is not the intervention of choice. (C) If delivery of the infant is imminent, preparing a clean or sterile area for delivery is appropriate, but labor status must be established, whether delivery is imminent, by perineal assessment. (D) Assessing FHR is one intervention to ascertain fetal well-being. Based on the client's cry, this is not the intervention of choice.

Section: Questions Set D
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/Reference:
Explanation:
(A) Bradycardia is an expected assessment during the postpartum period. (B) Diuresis can occur during labor and the postpartum period and is an expected physiological adaptation. (C) A return of rubra after the serosa period may indicate a postpartal complication. (D) Diaphoresis, especially at night, is an expected physiological change and does not indicate an infectious process. Bradycardia, diuresis, and diaphoresis are normal postpartum physiological responses to adjust the cardiac output and blood volume to the nonpregnant state.

(A) A boardlike, rigid abdomen would point to a perforated bowel, not a fecal impaction. (B) When a client is fecally impacted, a common symptom is the urge to defecate but the inability to do so. (C) When an impaction is present, only liquid stool will be able to pass around the impacted site. (D) Abdominal pain without distention is not a sign of a fecal impaction.

(A) Polymerase chain reaction is the laboratory technique specific for Lyme disease. (B) Heterophil antibody test is used to diagnose mononucleosis. (C) Lyme disease does not decrease the serum calcium level. (D) Lyme disease does not increase the serum potassium level.