An infant has the following findings at 5 minutes of life: pulse per minute, cyanotic hands and feet, good muscle tone, and a strong cry and grimace This infant's Apgar score is

Correct Answer: A

Rationale: The Apgar score is calculated by assigning points ( - ) for heart rate, respiratory effort, muscle tone, reflex irritability, and color Based on the description, the score would be: Heart rate ( ), Respiratory effort ( ), Muscle tone ( ), Reflex irritability ( ), Color ( ) = 9 points

Correct Answer: C

Rationale: Exposure to non-TB mycobacteria can cause cross-reactivity, leading to a false-positive tuberculin skin test.

Correct Answer: D

Rationale: High cholesterol is not a diagnostic criterion for systemic lupus erythematosus; it is unrelated to the disease process.

Correct Answer: C

Rationale: In CHF, the liver is typically tender and pulsatile due to venous congestion. A firm, non-tender liver is more indicative of chronic liver disease rather than acute heart failure.

Correct Answer: C

Rationale: Hemophilia A is a clotting disorder due to Factor VIII deficiency, leading to prolonged activated partial thromboplastin time (APTT) while PT, BT, and TT remain normal.