Acommunity health nurse is making a family home visit. the family consists of the mother, father, a 1-year-old, and a 4-year-old. the mother tells you that the 4-year-old, who is in preschool, had a cold last week, and now the 1-year-old has it. she asks the nurse if she can use the over-the-counter cold medication that she gave to the 4-year-old for the 1-year-old. which response would be most appropriate

A41-year-old man comes to the clinic complaining of a chronic cough over the past 4 months, which has now been accompanied by haemoptysis. he denies smoking or any past medical history. on physical examination, his head and neck examination is normal. his lungs have diffuse bilateral rales. cardiac examination is normal. laboratory findings reveal na 142 meq/l, k 4.2 meq/l, cl 110 meq/l, hco3 24 meq/l, bun (blood urea nitrogen) 39 mg/dl, creatinine 2.9 mg/dl. urinalysis reveals microscopic haematuria and 4+ proteinuria. which of the following serologic blood tests would most confirm the suspected diagnosis? - anti-glomerular basement membrane antibodies- anti-mitochondrial antibodies- anti-neutrophilic antibodies- anti-parietal cell antibodies- anti-smooth muscle antibodies