A nurse in the emergency department is assessing a 4-month-old infant who has suspected pertussis. Which of the following findings should the nurse identify as consistent with this diagnosis? (Select all that apply.)

Dry, hacking cough that worsens at night

Wheezing with shortness of breath during activity

Inspiratory stridor with a barking cough

Paroxysmal coughing followed by a high-pitched "whoop" on Inspiration

Apnea and cyanosis during coughing episodes