The nurse is planning care for several patients in the hospital environment. Which is the greatest risk factor for a patient developing Clostridioides difficile?

A. Type 1 diabetes is not caused by a single recessive gene. It has a genetic component but typically involves multiple genes, with HLA-DR3 and HLA-DR4 being associated with increased risk, and is often triggered by autoimmune reactions.
B. The HLA-DR3 and HLA-DR4 genes are associated with an increased genetic risk for type 1 diabetes, as it is an autoimmune condition that destroys insulin-producing cells in the pancreas.
C. While infections (including viral infections) can sometimes trigger the onset of type 1 diabetes, bacterial infections themselves do not cause the condition. It is autoimmune in nature, where the body attacks its insulin-producing cells.
D. Excessive heat and temperatures do not cause type 1 diabetes. The condition is driven by genetic and autoimmune factors, not environmental ones like heat.
E. Exposure to processing of metals and proteins does not cause type 1 diabetes. The disease is primarily associated with genetic predisposition and autoimmune destruction of pancreatic beta cells.

A. Delirium due to cardiac medications is a possibility, but the patient’s history of cerebrovascular accident (CVA) makes vascular neurocognitive disorder more likely. Delirium typically presents acutely and is often associated with medical or environmental triggers.
B. Vascular neurocognitive disorder (formerly vascular dementia) is often seen in clients with a history of cerebrovascular accidents (strokes). The client’s symptoms of memory problems, confusion, and disorientation could indicate this type of cognitive impairment, which is caused by reduced blood flow to the brain due to vascular damage.
C. Neurocognitive disorder due to Huntington's disease typically presents with movement disorders (chorea), mood changes, and gradual cognitive decline, rather than sudden memory loss and disorientation.
D. Alzheimer’s disease typically presents with gradual memory decline and cognitive impairment, but the sudden onset of symptoms in a patient with a history of CVA makes vascular neurocognitive disorder more probable.