Arrhythmias — Flashcards

Flashcard 371: Symptoms of orbital cellulitis include _____, ophthalmoplegia, and visual changes

Answer: proptosis

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Flashcard 372: What CSF analysis finding is useful for diagnosis of multiple sclerosis? _____

Answer: Oligoclonal bands of IgG

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Flashcard 373: Who gets meningitis from Listeria?\n(1) _____\n(2) _____\n(3) _____

Answer: Neonates

Extra: Listeria monocytogenes is a gram-positive motile rod that is an intracellular pathogen. Because it lives inside cells, cell-mediated immunity (T-cells) is required to clear it, making the very young, very old, and immunocompromised particularly susceptible.

Flashcard 374: _____ degree AV block is characterized by a PR interval > 200 msec on ECG

Answer: 1st

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Flashcard 375: ECG: regular and narrow complex tachycardia with rate > 150 Clinical: brief episodes of palpitations, dizziness, chest pain, dyspnea, syncope _____

Answer: Supraventricular tachycardia

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Flashcard 376: What is the initial treatment of choice for a patient with ventricular fibrillation or pulseless ventricular tachycardia? _____

Answer: Immediate defibrillation (unsynchronized)

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Flashcard 377: All patients with cognitive impairment must be evaluated for _____, as this is a treatable and reversible condition

Answer: hypothyroidism

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Flashcard 378: What is the normal range of Hematologic: Reticulocyte count?

Answer: From 0.5 to 1.5 %

Flashcard 379: A 23-year-old man is hospitalized following a motor vehicle accident. Several days later, he develops intense thirst and polyuria. Laboratory findings show increased plasma osmolarity and hypernatremia. What is the most likely diagnosis?

Answer: Central Diabetes Insipidus (DI) In the context of head trauma (MVA), damage to the hypothalamus or posterior pituitary leads to a deficiency in Antidiuretic Hormone (ADH). This results in an inability to reabsorb water in the collecting ducts, leading to high plasma osmolarity and excessive loss of free water.

Extra: A Darrow-Yannet diagram for Diabetes Insipidus (pure water loss) shows: 1. Increased osmolarity in both ECF and ICF. 2. Decreased volume in both ECF and ICF (as water shifts from ICF to ECF to compensate for the high ECF osmolarity).

Flashcard 380: Inflammatory disorder of the skin and skeletal muscle?

Answer: Dermatomyositis