Regarding physical abuse, the physical signs in abused children (as bite marks) may be found in up to

Correct Answer: A

Rationale: Bite marks are relatively rare, occurring in only about 5% of physically abused children. Higher percentages would include broader categories of abuse indicators.

Correct Answer: D

Rationale: High pH and elevated bicarbonate indicate metabolic alkalosis without respiratory compensation.

Correct Answer: A

Rationale: Hypomanic episodes are associated with bipolar disorder, not major depressive episodes. Depressed mood, loss of interest, and significant weight loss are core criteria for major depression.

Correct Answer: A

Rationale: Gastroesophageal reflux can exacerbate asthma symptoms by triggering bronchoconstriction and airway inflammation.

Correct Answer: B

Rationale: In metabolic acidosis, hydrogen ions shift into cells, causing potassium to move out, leading to hyperkalemia despite normal total body potassium.