A nurse is performing a focused assessment for vision on a client suspected of having vision loss. Which cranial nerve is the nurse assessing when determining if there are visual field or visual acuity deficits?

Choice A Reason: This choice is incorrect. Cranial Nerve VIII is the vestibulocochlear nerve, which is responsible for hearing and balance. It does not affect vision or eye movements.

Choice B Reason: This is the correct choice. Cranial Nerve II is the optic nerve, which is responsible for transmitting visual information from the retina to the brain. It affects visual field and visual acuity, which are measures of peripheral and central vision, respectively.

Choice C Reason: This choice is incorrect. Cranial Nerve I is the olfactory nerve, which is responsible for smell. It does not affect vision or eye movements.

Choice D Reason: This choice is incorrect. Cranial Nerve VII is the facial nerve, which is responsible for facial expressions and taste. It does not affect vision or eye movements.

Choice A Reason: "I ate shellfish about 2 weeks ago at a local restaurant." supports the medical diagnosis of hepatitis A, which is an infection of the liver caused by the hepatitis A virus (HAV). HAV is transmitted by fecal-oral route, meaning that it can be contracted by ingesting contaminated food or water, such as raw or undercooked shellfish from polluted waters. The incubation period for hepatitis A is about two to six weeks.

Choice B Reason: "I was an intravenous drug abuser in the past and shared needles." does not support the medical diagnosis of hepatitis A, but may indicate exposure to hepatitis B or C, which are infections of the liver caused by the hepatitis B virus (HBV) or hepatitis C virus (HCV). HBV and HCV are transmitted by blood or body fluids, meaning that they can be contracted by sharing needles, syringes, or other injection equipment with infected people.

Choice C Reason: "I had a blood transfusion in 1980 after major abdominal surgery." does not support the medical diagnosis of hepatitis A, but may indicate exposure to hepatitis B or C, which are infections of the liver caused by the hepatitis B virus (HBV) or hepatitis C virus (HCV). HBV and HCV are transmitted by blood or body fluids, meaning that they can be contracted by receiving blood transfusions or organ transplants from infected donors. However, since 1992, all donated blood in the United States has been screened for HBV and HCV.

Choice D Reason: "I have had unprotected sex with multiple partners." does not support the medical diagnosis of hepatitis A, but may indicate exposure to hepatitis B or C, which are infections of the liver caused by the hepatitis B virus (HBV) or hepatitis C virus (HCV). HBV and HCV are transmitted by blood or body fluids, meaning that they can be contracted by having unprotected sex with infected people. However, sexual transmission of HAV is rare, unless there is contact with fecal matter.