A 48-year-old woman presents to the physician with complaints of muscle weakness which has been troubling her for more than 5 years. Over the passix months, she has noticed increasing difficulty in getting up from the chair, climbing stairs and combing her hair. On physical examination, proximalmuscle strength in both upper and lower extremities is between 2/5 and 3/5. There is no rash. Muscle biopsy shows endomysial lymphocytic infiltrationand patchy muscle fiber necrosis. An antibody directed against which of the following antigens is most likely to be seen in this patient?Answers A-EA Acetylcholine receptorB Bullous pemphigoid antigenC Desmoglein 1 and 3D Histidyl tRNA synthetaseE Presynaptic calcium channelOF 45 QUESTIONS VERSION 2M 6.4Question 14 VFLAG QUESTIONMacBook ProPreviousNext

Given information A 48-year-old woman presents muscle weakness for more than 5 years. The proximal…

Answered: 48-year-old woman presents to the…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Clinical Case Study: Lymphatic System/Immunity
A 19-year-old male visits his primary care physician with a sore throat, swollen lymph nodes, and extreme fatigue. During the visit, the nurse finds that he has a fever. The patient reports that he is attending his second year of college at a local university. The physician performs a physical examination, which confirms large, swollen, painful lymph nodes. He decides to send the patient to the office laboratory for blood work. He orders a complete blood count (CBC) and viral and bacterial studies. Reference Range Reference Range WBC 13.3 × 103/uL 4.8–10.8 × 103/uL Neutrophils 40% 60%–70% RBC 4.5 × 109/L 4.7–6.1 × 109/L Lymphocytes 53% *20% of lymphocytes are atypical 20%–30% Hgb 14.1 g/dL 14–18 g/dL Monocytes 7% 5%–10% Hct 42% 42%–52% Eosinophils 0 0%–5% MCV 92 fL 80–100 fL Basophils 0 0%–2% MCH 27 pg 27–31 pg Absolute neutrophils 5.32 1.4–6.5 × 103/uL MCHC 33% 32% –36% Absolute…
A 19-year-old male visits his primary care physician with a sore throat, swollen lymph nodes, and extreme fatigue. During the visit, the nurse finds that he has a fever. The patient reports that he is attending his second year of college at a local university. The physician performs a physical examination, which confirms large, swollen, painful lymph nodes. He decides to send the patient to the office laboratory for blood work. He orders a complete blood count (CBC) and viral and bacterial studies. Reference Range Reference Range WBC 13.3 × 103/uL 4.8–10.8 × 103/uL Neutrophils 40% 60%–70% RBC 4.5 × 109/L 4.7–6.1 × 109/L Lymphocytes 53% *20% of lymphocytes are atypical 20%–30% Hgb 14.1 g/dL 14–18 g/dL Monocytes 7% 5%–10% Hct 42% 42%–52% Eosinophils 0 0%–5% MCV 92 fL 80–100 fL Basophils 0 0%–2% MCH 27 pg 27–31 pg Absolute neutrophils 5.32 1.4–6.5 × 103/uL MCHC 33% 32% –36% Absolute…
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You are an emergency room physician. Marcus, a 7-year-old boy, has just presented in the ER complaining that (1) his chest hurts, his heart feels funny, and his ankles and knees hurt. His mother says that he has had a fever for the past 24 hours. (2) Upon physical examination, you notice that his ankles and knees are red and swollen, and examination with a stethoscope reveals unusual palpitations (his heart is fluttering). (3) You immediately order an EKG to check for signs of a heart-attack, a CBC blood draw to check for signs of infection, a throat culture to check for presence of Streptococcus, an X-ray of his legs to check for bone fractures or lesions, and a urine sample to check for bacterial contamination. You are using the scientific method to diagnose Marcus. Which of the following statement(s) is your puzzling observation? Statement 1 Statement 2 Statement 3 Statement 1 and 2 Statment 2 and 3
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