Nokea
A patient presents with sudden-onset, painless vision loss in the right eye. Fundoscopic examination reveals a cherry-red spot at the macula and attenuated retinal vessels. Which of the following conditions is most likely responsible for this presentation?
- A. Central retinal artery occlusion
- B. Central retinal vein occlusion
- C. Retinal detachment
- D. Acute angle-closure glaucoma
Correct Answer: A
Rationale: The correct answer is A: Central retinal artery occlusion. This condition presents with sudden-onset, painless vision loss, cherry-red spot at the macula due to lack of blood flow, and attenuated retinal vessels. The cherry-red spot is due to the transparency of the fovea when there is ischemia in the surrounding retina. Central retinal vein occlusion (B) presents with sudden vision loss accompanied by retinal hemorrhages and dilated tortuous veins. Retinal detachment (C) typically presents with sudden flashes, floaters, and a curtain-like visual field defect. Acute angle-closure glaucoma (D) presents with severe eye pain, blurred vision, halos around lights, and a fixed mid-dilated pupil.
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A patient presents with muscle weakness and fatigue. Upon further examination, it is revealed that the patient has decreased acetylcholine receptors at the neuromuscular junction. Which of the following conditions is most likely responsible for this presentation?
- A. Myasthenia gravis
- B. Amyotrophic lateral sclerosis (ALS)
- C. Guillain-Barre syndrome
- D. Muscular dystrophy
Correct Answer: A
Rationale: The correct answer is A: Myasthenia gravis. In myasthenia gravis, there is a decrease in acetylcholine receptors at the neuromuscular junction, leading to muscle weakness and fatigue. This occurs due to autoimmune destruction of these receptors. ALS (B) affects motor neurons, not acetylcholine receptors. Guillain-Barre syndrome (C) is an autoimmune disorder affecting peripheral nerves, not neuromuscular junctions. Muscular dystrophy (D) is a genetic disorder causing muscle degeneration, not affecting acetylcholine receptors.
A patient presents with a painful, vesicular rash following a linear pattern on the left forearm. The patient reports a history of gardening without gloves. Which of the following conditions is most likely responsible for this presentation?
- A. Allergic contact dermatitis
- B. Herpes simplex virus infection
- C. Scabies
- D. Poison ivy dermatitis
Correct Answer: B
Rationale: The correct answer is B: Herpes simplex virus infection. The presentation of a painful, vesicular rash following a linear pattern on the left forearm is characteristic of herpes simplex virus infection, specifically herpes zoster (shingles). The linear pattern is due to the virus following a specific nerve pathway. This is different from the other choices - A: Allergic contact dermatitis typically presents as a diffuse rash at the site of contact with an allergen, not a linear pattern. C: Scabies presents with burrows and papules, not vesicles in a linear pattern. D: Poison ivy dermatitis causes a diffuse rash, not a linear vesicular rash.
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 correct answer is A: Anterior uveitis. This condition presents with redness, pain, and photophobia due to inflammation of the uveal tract. Ciliary injection, corneal edema, and mid-dilated pupil with fixed reaction to light are classic signs of anterior uveitis. The other choices can be ruled out based on specific findings: B: Acute angle-closure glaucoma would present with a high intraocular pressure, not fixed dilated pupil. C: Endophthalmitis typically presents with severe pain, hypopyon, and vitreous inflammation. D: Corneal abrasion would not cause ciliary injection or fixed dilated pupil.
Nurse Merry 's application to Canada has finally been approved and she was advised to depart in three months But, she is also enrolled in the graduate school and ambivalent to go because of this engagement plus the fact that her mother has just been discharged from the hospital. Which of the following actions is BEST?
- A. Tell family that the. money spent in graduate school can be easily earned in Canada
- B. Inform the agency that she could go anytime as they wish.
- C. Tell the recruiter to give her more time to settle her personal affairs.
- D. Share to friends this is her escape from her sad life with her family.
Correct Answer: C
Rationale: The correct answer is C. Nurse Merry should tell the recruiter to give her more time to settle her personal affairs before departing to Canada. This is the best action because it shows responsibility and consideration for her current commitments and family situation. By requesting more time, she can prioritize her mother's recovery and complete her graduate studies, demonstrating good decision-making skills and care for her loved ones.
Option A is incorrect because it dismisses the importance of family and personal obligations. Option B is incorrect as it shows a lack of planning and responsibility. Option D is incorrect as it suggests running away from problems instead of addressing them responsibly.
Which of the following is the best predictor of adolescents attempting suicide?
- A. Depressed mood
- B. Feeling of euphoria
- C. Joyful mood
- D. Feeling of hopelessness
Correct Answer: D
Rationale: The correct answer is D: Feeling of hopelessness. Adolescents who feel hopeless are at a higher risk of attempting suicide due to a lack of belief in positive outcomes. This feeling can lead to a sense of being trapped and unable to see a way out. Depressed mood (A) can contribute to suicide risk, but specifically feeling hopeless is a more direct predictor. Feeling of euphoria (B) and joyful mood (C) are actually less likely to be associated with suicide attempts, as they may temporarily mask underlying issues or provide a sense of distraction. Hopelessness is a key psychological factor that can lead to suicidal thoughts and behaviors in adolescents.