An 18-year-old boy with cystic fibrosis presents to the Emergency Department with a 4-day history of progressively worsening productive cough, fever, and malaise. His temperature is 38.8°C, blood pressure is 110/75 mmHg, heart rate is 104 beats per minute, and respiratory rate is 24 breaths per minute. Chest x-ray demonstrates a right lower lobe infiltrate. Which antibiotic would be most beneficial for empiric treatment of this patient?

A 15-year-old boy with cystic fibrosis is brought to the emergency department for epistaxis.  He first noticed intermittent nose bleeds a few days ago after a week of nasal congestion with low-grade fever.  The bleeding worsened today and has been difficult to control.  The patient has also had easy bruising for the past 2 months.  He has not been taking his prescribed medications.  Temperature is 37 C (98.6 F), blood pressure is 108/72 mm Hg, pulse is 90/min, and respirations are 18/min.  The patient is alert and cooperative.  There is active bleeding from the left naris.  The pupils are equal and reactive.  Breath sounds are coarse bilaterally, and cardiac examination is unremarkable.  The abdomen is soft and nontender with no organomegaly.  Strength and sensations are 5/5.  Reflexes are equal bilaterally, and gait appears normal.  Skin examination shows diffuse bruises along the extremities.  Which of the following is the most likely cause of this patient's symptoms?

Infections for which antibiotic treatment is deemed inappropriate, except(1 Point)Cold, Flu, Chest cold (in otherwise healthy children and adults)Sore throats (strep throat), bronchitis (in otherwise healthy children and adults)Runny nose (with green or yellow mucus), Fluid in the middle ear

A patient has a lung infection with Pseudomonas aeruginosa. What antibiotic should be used against it?

Which of the following are commonly used in the management of cystic fibrosis?1. Pancreatic enzymes and vitamins2. Antibiotics3. Postural drainage4. Antitussives

A 32-year-old man comes to the physician complaining of fever, shortness of breath, and a productive cough that has developed slowly over the past week. He has no other medical history and does not take any medications. His temperature is 38.5°C, blood pressure is 122/78 mmHg, heart rate is 68 beats per minute, respiratory rate is 18 breaths per minute, and oxygen saturation is 98% on room air. There are decreased breath sounds and dullness to percussion over the right lung base. The rest of the physical examination, including cardiac auscultation, is normal. A chest x-ray confirms consolidation of the right lower lobe. What is the most appropriate course of action for this patient?