An advanced practice registered nurse (APRN) teaches an 87 year-old patient about home safety. Which of the following would the APRN include in the education?

Vaginal infections are commonly differentiated based on discharge characteristics, microscopic findings, and associated symptoms. Bacterial vaginosis results from an imbalance in the normal vaginal flora, where lactobacilli are replaced by anaerobic bacteria. This leads to a characteristic thin, gray, fishy-smelling discharge. The presence of clue cells on wet mount is a key diagnostic feature, indicating vaginal epithelial cells coated with bacteria.

Rationale:
A. Candidal vaginitis is caused by overgrowth of Candida species and typically presents with thick, white, “cottage cheese-like” discharge accompanied by intense itching and vulvar irritation. It does not produce clue cells on wet mount. The discharge described in this case is thin, gray, and malodorous, which is inconsistent with candidiasis.

B. Trichomonal vaginitis is a sexually transmitted infection caused by Trichomonas vaginalis and is characterized by frothy, yellow-green discharge, vaginal irritation, and a “strawberry cervix” on examination. Motile trichomonads are seen on wet mount, not clue cells. The discharge characteristics and laboratory findings in this case do not align with trichomoniasis.

C. Bacterial vaginosis is the most appropriate diagnosis because it is defined by an imbalance in vaginal flora leading to overgrowth of anaerobic bacteria. It classically presents with thin, gray, malodorous discharge and a fishy odor, especially after intercourse. The presence of clue cells on wet mount is diagnostic, as these epithelial cells are coated with bacteria that obscure their borders.

D. Atrophic vaginitis occurs due to decreased estrogen levels, typically in postmenopausal women, leading to vaginal dryness, irritation, and dyspareunia. It does not present with malodorous discharge or clue cells. The patient’s age and laboratory findings make this diagnosis unlikely.

Progressive visual impairment in older adults can result from several age-related ocular conditions that affect different parts of the eye. Glaucoma is a chronic optic neuropathy characterized by increased intraocular pressure leading to progressive optic nerve damage. This damage initially affects peripheral vision, often unnoticed by patients until significant loss has occurred. Changes such as increased cup-to-disc ratio and visual field defects are key diagnostic indicators of glaucomatous damage.

Rationale:
A. Cataracts involve clouding of the eye’s lens, leading to blurred vision, glare, and difficulty seeing in low-light conditions. They primarily affect central vision rather than peripheral vision and do not cause an increased cup-to-disc ratio. The optic nerve remains unaffected in cataracts, making this diagnosis inconsistent with the findings described.

B. Glaucoma is the most likely diagnosis because it is characterized by progressive optic nerve damage associated with increased intraocular pressure. It initially causes peripheral vision loss, leading to “tunnel vision,” which explains the patient’s difficulty noticing cars in adjacent lanes. The increased cup-to-disc ratio on examination is a hallmark sign of optic nerve atrophy due to chronic pressure-related damage.

C. Macular degeneration primarily affects central vision due to deterioration of the macula, the part of the retina responsible for sharp, detailed vision. Patients typically report difficulty reading or recognizing faces rather than peripheral vision loss. The presence of peripheral vision defects and optic disc changes does not align with this condition.

D. Presbyopia is an age-related decline in the eye’s ability to focus on near objects due to lens stiffening. It results in difficulty with reading or close work but does not affect peripheral vision or cause optic nerve changes. The physical examination findings of increased cup-to-disc ratio are not associated with presbyopia.