Explanation/Reference:
Explanation:
(A) Monitoring temperature twice a day predicts the biphasic pattern of ovulation. (B) Prediction of ovulation relies on consistency in taking temperature. (C) Nightly rectal temperatures are more accurate in predicting ovulation. (D) Activity changes the accuracy of basal body temperature and ability to detect the luteinizing hormone surge.

Section: Questions Set B
Explanation:
(A) Tetany is seen with low calcium. (B) Low potassium causes dysrhythmias because potassium is responsible for cardiac muscle activity. (C) Numbness of extremities is seen with high potassium. (D) Headache is not associated with potassium excess or deficiency.

Explanation/Reference:
Explanation:
(A) Increased CO2 will occur in both acute and chronic respiratory acidosis. (B) Hypoxia does not determine acid-base status. (C) Elevation of HCO3 is a compensatory mechanism in acidosis that occurs almost immediately, but it takes hours to show any effect and days to reach maximum compensation.
Renal disease and diuretic therapy may impair the ability of the kidneys to compensate. (D) Base excess is a nonrespiratory contributor to acid-base balance. It would increase to compensate for acidosis.

(A) Although eating habits are important to assess, they are less important than suicidal intent. (B) Maintenance of the client's life is the priority; assessment of suicidal intent is imperative. (C) Relationships and support systems are an important part of assessment, but they are less important than suicidal intent. (D) Daily living activities will give additional information about the level of depression, and are less significant than suicidal intent, although this information may give additional information about the actual plan for a suicidal attempt.

Section: Questions Set B
Explanation:
(A) The immediate treatment for drug overdose is removal of the drug from the stomach by either forced emesis or gastric lavage. The child's unconscious state prohibits forced emesis. (B) Toxic amounts of salicylates directly affect the respiratory system, which could lead to respiratory failure. (C) The mother's anxiety is probably so high that preventive guidance will be ineffective. (D) Respiratory assistance is not needed if the child's respiratory function is unaltered.