Nokea
The nurse recognizes that a patient is exhibiting symptoms associated with a TIA. After what period of time does the nurse determine these symptoms will subside?
- A. 1 hour
- B. 12 hours
- C. 3 to 6 hours
- D. 24 to 36 hours
Correct Answer: A
Rationale: Transient ischemic attack (TIA) is a temporary episode of neurological dysfunction caused by a temporary disruption in blood supply to the brain. The symptoms of a TIA typically last for a short period of time, usually less than 1 hour. In some cases, the symptoms may last up to 24 hours but generally resolve within a shorter time frame. It is important for healthcare providers to recognize the symptoms of a TIA promptly and assess the patient for appropriate management to prevent the risk of a full-blown stroke.
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A patient presents with redness, pain, and photophobia in the left eye. Slit-lamp examination reveals ciliary injection, corneal edema, and a mid-dilated pupil with fixed reaction to light. Which of the following conditions is most likely responsible for this presentation?
- A. Anterior uveitis
- B. Acute angle-closure glaucoma
- C. Endophthalmitis
- D. Corneal abrasion
Correct Answer: A
Rationale: The presentation described in the question is most consistent with anterior uveitis. Anterior uveitis, also known as iritis, is characterized by redness, pain, and photophobia in the affected eye. Slit-lamp examination typically reveals ciliary injection (reddening of the conjunctiva and episclera), corneal edema, and a mid-dilated pupil with a fixed reaction to light (miosis). This occurs due to inflammation within the anterior chamber of the eye involving the iris and ciliary body.
Which of the following dental conditions is characterized by inflammation and destruction of the supporting structures of the teeth, including the gingiva, periodontal ligament, and alveolar bone?
- A. Dental caries
- B. Gingivitis
- C. Periodontitis
- D. Dental abscess
Correct Answer: C
Rationale: Periodontitis is the dental condition characterized by inflammation and destruction of the supporting structures of the teeth, including the gingiva (gums), periodontal ligament, and alveolar bone. It is usually caused by untreated gingivitis, where plaque buildup along the gumline leads to bacterial infection and inflammation, resulting in destruction of the tissues that support the teeth. If left untreated, periodontitis can lead to tooth loss and other complications. Gingivitis, on the other hand, is inflammation of the gums without involvement of the supporting structures, while dental caries refer to tooth decay or cavities in the enamel. Dental abscess is a localized collection of pus caused by a bacterial infection.
A patient is exposed to the hepatitis B virus (HBV) and develops immunity against future infections. Which type of immunity is primarily responsible for this protection?
- A. Passive immunity
- B. Innate immunity
- C. Humoral immunity
- D. Cell-mediated immunity
Correct Answer: C
Rationale: Humoral immunity is primarily responsible for protecting against infections by pathogens like viruses. In the case of the hepatitis B virus (HBV), the individual is exposed to the virus and develops immunity, which is typically mediated by antibodies produced by B cells. These antibodies circulate in the blood and can neutralize the virus, preventing future infections. This type of immunity is known as humoral immunity, as it involves the production of antibodies that target specific antigens, such as those present on the surface of the hepatitis B virus. In contrast, passive immunity is when antibodies are transferred from an external source, innate immunity provides immediate, non-specific defenses against pathogens, and cell-mediated immunity involves the activation of T cells to combat intracellular pathogens.
A patient presents with a yellowish-white spot on the cornea, surrounded by a ring of inflammation. Slit-lamp examination reveals branching, filamentous opacities extending from the corneal lesion. Which of the following conditions is most likely responsible for this presentation?
- A. Herpes simplex keratitis
- B. Bacterial keratitis
- C. Fungal keratitis
- D. Acanthamoeba keratitis
Correct Answer: C
Rationale: The description provided is classical for fungal keratitis. Fungal keratitis typically presents with a yellowish-white spot on the cornea, often surrounded by a ring of inflammation. Branching, filamentous opacities extending from the corneal lesion are commonly seen on slit-lamp examination in cases of fungal keratitis. This condition is often associated with risk factors such as trauma with organic material or contact lens wear. Prompt diagnosis and treatment with antifungal agents are crucial in managing fungal keratitis to prevent potential complications.
Upon further assessment, you notices that she had any scratches on her right ankle, a resulting infection, and cellulitis. When you asked her about the scratches, the patient states, "Oh, my cat might have been using my leg as a scratiching post again and I did not even feel it." Which diabetic complicatons suspect the patient to have?
- A. Neuropathy
- B. Retinopathy
- C. Macroangiopathy
- D. Nephropathy
Correct Answer: A
Rationale: The patient's lack of sensation in her right leg, allowing her cat to scratch her without her noticing, is indicative of neuropathy. Neuropathy is a common diabetic complication characterized by nerve damage that can result in loss of sensation or altered sensation in different parts of the body, including the extremities. In this case, neuropathy has likely affected the patient's right lower extremity, leading to her inability to feel the cat scratching her leg and resulting in the unnoticed scratches, infection, and subsequent cellulitis.