By is admitted to the hospital with a history of projectile vomiting after each feeding. On examination, it is found that the sphincter controlling food passage to the duodenum is thickened and does not readily open. Because of the baby's loss of gastric juice, his blood probably indicates:

Anurse is discussing adverse reactions to pain medications in older adult clients with a newly licensed nurse. which of the following findings should the nurse include as risk factors for an adverse drug reaction? (select all that apply.) a. decreased percentage of body fat b. polypharmacy c. multiple health problems d. increased rate of absorption e. decreased renal function