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Case-based MCQ

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📈 Análisis del canal de Telegram Case-based MCQ

El canal Case-based MCQ (@casebasedmcq) en el segmento lingüístico de Inglés es un actor destacado. Actualmente la comunidad reúne a 19 236 suscriptores, ocupando la posición 1 205 en la categoría Medicina y el puesto 22 679 en la región India.

📊 Métricas de audiencia y dinámica

Desde su creación el невідомо, el proyecto ha mostrado un crecimiento acelerado, reuniendo a 19 236 suscriptores.

Según los últimos datos del 19 junio, 2026, el canal mantiene una actividad estable. En los últimos 30 días la variación de miembros fue de -190, y en las últimas 24 horas de -1, conservando un alto alcance.

  • Estado de verificación: No verificado
  • Tasa de interacción (ER): El promedio de interacción de la audiencia es 2.20%. Durante las primeras 24 horas tras publicar, el contenido suele obtener 0.76% de reacciones respecto al total de suscriptores.
  • Alcance de las publicaciones: Cada publicación recibe en promedio 423 visualizaciones. En el primer día suele acumular 147 visualizaciones.
  • Reacciones e interacción: La audiencia responde de forma activa: el promedio de reacciones por publicación es 1.
  • Intereses temáticos: El contenido se centra en temas clave como boardvital, bmj, journal, usmle, drug.

📝 Descripción y política de contenido

El autor describe el recurso como un espacio para expresar opiniones subjetivas:
Enhance Your Medical Expertise with Case Based MCQ – Your Go-To Telegram Channel for Challenging, Real-World MCQs and Continuous Learning. Admin: @Mohamm_ADs

Gracias a la alta frecuencia de actualizaciones (últimos datos recibidos el 20 junio, 2026), el canal mantiene la vigencia y un amplio alcance. La analítica demuestra que la audiencia interactúa activamente con el contenido, lo que lo convierte en un punto de referencia dentro de la categoría Medicina.

19 236
Suscriptores
-124 horas
-417 días
-19030 días
Archivo de publicaciones
🇨🇦 MCCQE1,2 | #Case_254 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 30-year-old black female sees you because her hair has been falling out over the past 2 months. She tells you that she straightened, waved, and lightened her hair about 3 months ago. Examination shows most of the hair loss to be in the midline of the scalp, with an area of dark hairs about 3 cm in length in the center region. There is no evidence of balding or scarring. A potassium hydroxide (KOH) scraping is negative. Which one of the following is most appropriate management? a) Psoralen plus ultraviolent light (PUVA) b) Advising the patient to avoid hair treatment products c) Oral itraconazole (Sporanox) d) Topical minoxidil (Rogaine) e) Intralesional corticosteroids

🇨🇦 MCCQE1,2 | #Case_253 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ B 🔎 Explanation An intravenous drug abuser with high fever and a cardiac murmur should be considered to have acute bacterial endocarditis with staphylococcus until proven otherwise. The valvular lesion most commonly seen in these patients is tricuspid regurgitation. This is a systolic murmur and since it is located on the right side of the heart, it will increase in intensity with inspiration, which increases right heart filling.

🇨🇦 MCCQE1,2 | #Case_252 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ A 🔎 Explanation Postpartum thyroiditis is a common condition, occurring after 3%-16% of pregnancies. It is thought to be a variation of Hashimoto’s disease and can present in several ways. It can cause hyperthyroidism, beginning 1-4 months after delivery and lasting for 2-8 weeks. Thyroid function then either returns to normal or the patient develops transient or permanent hypothyroidism. Another possible manifestation is hypothyroidism beginning 2-6 months after delivery, which again can either be transient or become permanent. A third possibility is that the patient can develop a euthyroid goiter. As in this case, the symptoms are usually mild, and can be confused with the typical feelings of a new mother. Since the symptoms are mild and the hyperthyroid stage is brief, treatment is not necessary in the majority of cases. The hyperthyroid symptoms should be explained to the patient, and she should also be made aware of the symptoms of hypothyroidism, since it is a common development after the hyperthyroid stage has passed and may be permanent. Breastfeeding was going well in this patient, and should be continued. Propranolol is not needed unless the palpitations worsen. Propylthiouracil is used for Graves’ disease, to counteract overproduction of thyroid hormone. With postpartum thyroiditis, as with other types of thyroiditis, thyroid hormone is released from the gland as a result of autoimmune injury, but production of thyroid hormone is actually low. Propylthiouracil has no place in the treatment of thyroiditis. Radioactive thyroid scanning is not necessary unless symptoms are significant and are not resolving, in which case Graves’ disease masquerading as thyroiditis must be ruled out. Thyroiditis would cause low uptake, but this has no bearing as to whether thyroid hormone needs to be given. Thyroid hormone is used in postpartum thyroiditis if the person is found to be hypothyroid (with high levels of TSH), with symptoms significant enough to require treatment. Treatment would be continued for 1-2 months and then stopped, and the TSH level rechecked 1 month later to see if the hypothyroid condition has resolved

🇨🇦 MCCQE1,2 | #Case_252 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 24-year-old female presents with a complaint of mild fullness in the neck. A review of systems is negative, except for some poor sleep related to the care of her 4-month-old infant, and mild palpitations at times when she is tired. Her pregnancy was uneventful, and breastfeeding is going well. Findings on examination are normal except for enlargement of the thyroid. Her TSH level is 0.1 μU/mL (N 0.3-5.0). Which one of the following would be most appropriate at this point? a) Reassure the patient that this is a common event that requires no treatment unless significant symptoms develop b) Prescribe propranolol (Inderal) and have the patient stop breastfeeding c) Advise the patient to stop breastfeeding, start low-dose propylthiouracil, and adjust on a biweekly basis until the TSH has returned to normal d) Arrange for a radioactive iodine uptake scan, and if low start levothyroxine (Synthroid), 0.05 mg/day, and recheck the TSH level in 6 weeks

🇨🇦 MCCQE1,2 | #Case_251 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ C 🔎 Explanation The Jarisch-Herxheimer reaction resembles bacterial sepsis and can occur after initiation antibacterials such as penicillin or tetracycline, or treatment of tick-borne relapsing fever. This is the transient febrile reaction that occurs within the first few hours and peaks at 6-8 hours. The Jarisch-Herxheimer reaction follows a self-limited course. The Jarisch-Herxheimer reaction is often associated with fever, myalgia, headache, chills, tachycardia, increased respiratory rate, hemodynamic instability, exacerbation of skin lesions, and malaise. The circulating neutrophil count is elevated. ⚠ This is seen in meningococcemia. ⚠ Allergic reactions do not appear 6 hours after administration of the medication. ⚠ Secondary bacteremia will not make the lesions painful. Chills, malaise, and fever can be seen with bacteremia. ⚠ Condyloma lata is one of the lesions of secondary syphilis, not human papillomavirus

🇨🇦 MCCQE1,2 | #Case_251 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 25-year-old multiparous patient at 28 weeks’ gestation has condyloma lata. Six hours after receiving her first intramuscular dose of penicillin G benzathine, 2.4 mIU, she experiences fever, chills, malaise, headache, and myalgia. She also states that her lesions have become acutely painful. Her temperature is 38.3˚C (100.9˚F), pulse is 110 bpm, blood pressure in 90/60 mm Hg, and respirations are 24/min. The most likely diagnosis is: a) Waterhouse-Friderichsen syndrome b) Allergic reaction to penicillin c) Jarisch-Herxheimer reaction d) Secondary bacteremia e) Disseminated HPV viremia

🇨🇦 MCCQE1,2 | #Case_250 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ C 🔎 Explanation This patient presents after an intentional overdose of acetaminophen. 150 mg/kg or 7.5 g of acetaminophen in adults are considered toxic. This patient has ingested more than 8g. In North America acetaminophen has replaced viral hepatitis as the most common cause of acute hepatic failure and is the second most common cause of liver failure requiring transplantation. Acetaminophen is metabolized in the liver via glucuronidation, sulfation, and through the cytochrome P-450 pathway. In acute overdose, acetaminophen is oxidatively metabolized to the hepatotoxic reactive metabolite, N-acetyl-p-benzoquinoneimine (NAPQI). The clinical course of acetaminophen toxicity generally is divided into 4 stages: - The first stage that lasts up to 24 hours may be asymptomatic but is usually characterized by anorexia, nausea, vomiting, diaphoresis, pallor, and fatigue. - The second stage follows and goes up to 72 hours post-ingestion. It is characterized by right upper quadrant abdominal pain and tenderness, nausea and vomiting intensify, tachycardia and hypotension are noted. Elevated liver enzymes are found in labs and oliguria with elevated BUN and creatinine may occur. - The third stage also known as hepatic stage is characterized by continued abdominal pain, development of jaundice, coagulopathy, encephalopathy and hypoglycemia. - In patients who survive the fourth stage consists of recovery, which may take up to 21 days. Based on above, the least likely finding is increased serum glucose (choice C) because liver failure results in impaired gluconeogenesis. Hypoglycemia is expected to occur in acetaminophen toxicity. ⚠ Increased prothrombin time (choice A), Increased serum aspartate aminotransferase (choice B), Increased bilirubin (choice D) are noticed in the hepatic stage and last for several days before they normalize. ⚠ Increased creatinine (choice E) begins with stage 2 and levels greater than 300 µmol/L (3.4 mg/dL), INR of 6.5 and pH < 7.30 should prompt liver transplantation consultation. 🔖 Key point: Common findings in acetaminophen toxicity are elevated liver enzymes, elevated prothrombin time, elevated bilirubin, elevated BUN and creatinine, and decreased serum glucose

🇨🇦 MCCQE1,2 | #Case_250 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 17-year-old female is brought to your department by her parents. They found her laying down at home with an acetaminophen bottle next to her. When they asked her what happened she said that she had found out her boyfriend cheated on her with one of her friends. She ingested 25 oral tablets (325mg) that were in the bottle they had recently bought. Assuming the toxicity follows the established stages after this drug ingestion, which of the following findings is least likely to be present in this patient? a) Increased prothrombin time b) Increased serum aspartate aminotransferase c) Increased serum glucose d) Increased bilirubin e) Increased creatinine

🇨🇦 MCCQE1,2 | #Case_249 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ A 🔎 Explanation This patient has right lower quadrant abdominal pain, diarrhea, and anorexia. His skin appears bronzing and given his family history of hemochromatosis, he is likely to also have this disease. The above symptoms and physical examination findings when combined with the findings on CT scan that shows enlarged mesenteric lymph nodes, ileocecal wall thickening, and a normal appearing appendix suggest mesenteric lympadenitis. This is an inflammation of the mesenteric lymph nodes that may be acute or chronic depending on etiology. While E coli and other infectious agents could cause mesenteric lymphadenitis, in this patient with hemochromatosis, Yersiniosis (choice A) caused by Yersinia enterocolitica is the most likely etiology. It is an iron loving, non-lactose fermenting, and oxidase-negative facultative anaerobe. Iron overload that is characteristic of hemochromatosis patients is considered a thriving environment for these bacteria. ⚠ Epiploic appendagitis (choice B) is a rare disease that results from torsion of the epiploic appendages, which presents as an acute clinical condition mimicking diverticulitis, appendicitis, or other more serious causes of acute abdominal pain. This patient’s CT scan findings are more consistent with mesenteric lymphadenitis. In epiploic appendagitis, the most common finding on CT is a fat-density oval lesion with surrounding inflammation on the anterior aspect of the sigmoid colon. ⚠ Appendicitis (choice C) is incorrect. While this patient’s symptoms of right lower quadrant abdominal pain and the findings of rebound tenderness when the right lower quadrant is palpated are also seen in appendicitis, the negative Rovsing sign, psoas sign, and the CT scan findings point to a diagnosis of mesenteric lymphadenitis. ⚠ Ulcerative colitis (choice D) is a chronic inflammatory bowel disease that would most likely present with rectal bleeding. CT scan has limited role in the diagnosis of uncomplicated ulcerative colitis but would be useful in the diagnosis of its complications such as toxic megacolon. This patient’s CT findings point to mesenteric lymphadenitis. ⚠ E coli mesenteric lymphadenitis (choice E) is incorrect. While this patient’s clinical picture certainly fits the diagnosis of mesenteric lymphadenitis, given his hemochromatosis family history and the bronzing skin, Yersinia enterocolitica, is the more likely causative agent, as it is a well known iron-loving bacteria. 🔖 Key point: Right lower quadrant abdominal pain, tenderness on palpation, and CT scan findings of enlarged mesenteric lymph nodes, ileocecal wall thickening, and a normal appearing appendix suggest mesenteric lymphadenitis. In a patient with hemochromatosis, Yersinia enterocolitica is the most causative agent of mesenteric lymphadenitis.

🇨🇦 MCCQE1,2 | #Case_249 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 19-year-old male presents to your department because of abdominal pain for the last 2 days. The pain is localized in the right lower quadrant and he rates it as 7 out of 10. He also complains of diarrhea and loss of appetite. His past medical history is non-remarkable. His family history is significant for a father with hemochromatosis. On physical examination, the patient’s skin appears bronzing, he has tenderness on palpation of the right lower quadrant and rebound tenderness is also noted. The Rovsing sign and psoas sign are negative. Abdominal CT scan demonstrates enlarged mesenteric lymph nodes, ileocecal wall thickening, and a normal appearing appendix. What is the most likely diagnosis? a) Yersiniosis b) Epiploic appendagitis c) Appendicitis d) Ulcerative colitis e) E coli mesenteric lymphadenitis

🇨🇦 MCCQE1,2 | #Case_248 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ E 🔎 Explanation Pelvic inflammatory disease(PID) presents with infection and inflammation of the upper genital tract in women including the uterus, fallopian tubes, and/or ovaries. Risk factors for PID are the same as those for acquiring sexually transmitted infections: multiple sexual partners, young age, smoking, and illicit drug use. Neisseria gonorrhoeae and Chlamydia trachomatis are pathogens most commonly associated with PID though other pathogens including vaginal anaerobes may account for up to 23% in women. Criteria for diagnosis include cervical motion, uterine, or adnexal tenderness along with fever, vaginal/cervical discharge, leukocytosis, positive cultures and elevated C-reactive protein. Salpingitis and endometritis are also associated with PID and severe cases increase risk of ectopic pregnancy and infertility. Patients suspected of PID that are pregnant, non-responsive to oral antibiotic therapy for 72 hours, non-compliant to outpatient management, severe fever/nausea/vomiting and have tubo-ovarian abscess should be admitted for further evaluation and treatment. Commonly used inpatient therapeutic agents include IV 3rd generation cephalosporin and doxycycline followed by PO doxycycline for a total of 14 days. Outpatient therapy includes single dose IM ceftriaxone/cefoxitin and PO doxycycline for 14 days. This patient shows symptoms of acute PID and possible acute abdomen/sepsis therefore should be prepared for emergent surgery (choice E). Patients with tubo-ovarian abscess (TOA) larger than 10 cm should consider surgery. Surgical exploration is indicated in any patient with symptoms of acute abdomen (e.g. rebound tenderness, fever) and signs of sepsis (e.g. hypotension, tachypnea) shown in this patient. ⚠ Admit and give IV cefoxitin and doxycycline (choice A) is not correct. The patient should normally be admitted and given IV antimicrobials if the patient has severe symptoms and non-compliant or unresponsive to outpatient therapy. However, if the patient shows severe symptoms along with signs of sepsis, acute abdomen or ovarian rupture, she should undergo surgery right away. ⚠ Admit and give IM ceftriaxone and PO doxycycline (choice B) is not correct. IM ceftriaxone and PO doxycycline is commonly prescribed as outpatient therapy for PID patients. ⚠ Discharge the patient and advise follow-up in one week (choice C) is not correct. Since the patient presents with severe symptoms, she should not be discharged. ⚠ Discharge the patient and prescribe IM cefoxitin and PO doxycycline (choice D) is not correct. Since the patient presents with severe symptoms, she should not be discharged. Also, the antibiotics listed are typically used for outpatient therapy. 🔖 Key point: Pelvic inflammatory disease presents with infection (commonly gonococcal and chlamydial) and inflammation of the upper genital tract in women including the uterus, fallopian tubes, and/or ovaries associated with salpingitis and endometritis. If the patient presents with symptoms of sepsis, acute abdomen or tubal ovarian rupture, surgical intervention is warranted

🇨🇦 MCCQE1,2 | #Case_248 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 32-year-old woman comes to the emergency department complaining of fever, nausea, and vomiting for the past week. She has already vomited three times in the morning at home and one more time in the hospital. She also has some tenderness the pelvic region. Her last menstrual period was six weeks ago. She states that she has had many sexual partners in the past year. Past medical history includes an infection in the genital area that was treated with antibiotics two years ago. Vital signs indicate a temperature of 39°C, heart rate of 82 bpm, blood pressure of 92/59 mmHg, and respiratory rate of 24 bpm. Physical examination of the abdomen and pelvic area shows rebound tenderness. Ultrasound shows abscess in the pelvic region. What is next best step in management of this patient? a) Admit and give IV cefoxitin and doxycycline b) Admit and give IM ceftriaxone and PO doxycycline c) Discharge the patient and advise to follow-up in one week d) Discharge the patient and prescribe IM cefoxitin and PO doxycycline e) Prepare for laparoscopy

🇨🇦 MCCQE1,2 | #Case_247 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ B 🔎 Explanation Fissuring of the lips is a strong clue for differentiating Kawasaki disease from scarlet fever and toxic shock syndrome. ⚠ Scarlet fever and toxic shock syndrome might have the same type of scarlatiniform rash as Kawasaki disease described in this case. ⚠ Mild anemia, the ill look and high ESR might all accompany severe scarlet fever and toxic shock syndrome. Careful physical examination (fissuring of the lips in this case) is a strong tool in differentiating between diseases with similar presentations

🇨🇦 MCCQE1,2 | #Case_247 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 4-year-old boy was brought to hospital with fever for the last 6 days. The boy looked ill but not pale or jaundiced and his body temperature was 38.6°C. Examination of the mouth showed generalized erythema of oropharynx, strawberry tongue and red fissured lips. Polymorphous, confluent maculo-papular erythematous skin rash was noted. Two enlarged cervical lymph nodes could be palpated. Laboratory examination showed mild anemia and raised ESR. Kawasaki disease was strongly suspected. Although, scarlet fever and toxic shock syndrome should be considered in the differential diagnosis of this presentation, they are less likely because of: a) The type of the rash b) Fissuring of the lips c) The mild anemia d) The ill look of the patient e) The raised ESR

🇨🇦 MCCQE1,2 | #Case_246 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ B 🔎 Explanation The most common cause of minimal bright red blood per rectum in those under 50 years of age with no risk factors for GI cancer is anorectal pathology (hemorrhoids, fistulas, polyps, proctitis, rectal ulcers, and GI cancers). A thorough history including documentation of risk factors for GI cancer such as a family history or irritable bowel disease must be obtained. A physical examination must then be performed to rule out anorectal pathology. This can include an office anoscopy (choice B), which will detect the presence of polyps or obstructing rectal cancer. If an immediate cause is identified for the bleeding in a patient under 50 years of age, a colonscopy may not be indicated. However, a patient with bright red blood perrectum over 50 years of age should have an outpatient colonoscopy as the risk of malignancy in this age group increases markedly. Finally, a laboratory test to rule out anemia may be indicated depending on the length of bleeding and/or presence of anemic symptoms such as fatigue, dizziness or shortness of breath. ⚠ While the most probable cause is likely benign, a simple reassurance with follow-up (choice A) is not advised in case serious pathology is the actual cause. ⚠ While referral to colonoscopy is a reasonable course of action, a call for urgent colonoscopy (choice C) is not warranted particularly with a low pre-test probability for serious pathology given the patient's age, symptoms, and family history. ⚠ Advising the patient to go to the nearest ED (chice D) would be the correct course of action if you were concerned about an acute lower GI bleed that usually presents with brisk or constant bleeding. ⚠ While a CBC (choice E) is a reasonable lab test to order, it is not the immediate next step in managing this patient. 🔖 Key point: Prolonged minimal bright red blood per rectum is a common complaint in those under 50 years old. A full history and physical, including office anoscopy should be performed. However, any patient over 50 years of age with prolonged bright red blood per rectum should be referred for an outpatient colonoscopy

🇨🇦 MCCQE1,2 | #Case_246 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 32-year-old male presents to your family practice clinic with a 6 month history of painless bright red blood per rectum. He notices bright red blood upon wiping as well as occasionally mixed with his stool. He has no constitutional symptoms. He is otherwise healthy with no significant medical history. There is no family history of gastrointestinal tract disease. His vitals are: BP: 110/70 mmHg, HR 98 beats per minute, RR 16 breaths per minute. He looks well. Precordial examination is normal. Abdominal exam reveals a soft abdomen. Inspection of the perianal area does not suggest external hemorrhoids. Digital rectal examination reveals no blood on digit, pain, or masses. What is your next step in your immediate management of this patient? a) Reassure the patient that the cause is likely benign and arrange a follow-up in 4 weeks. b) Perform an anoscopy and arrange a colonoscopy if clinically warranted. c) Call your local gastroenterologist's office to arrange an urgent consultation and colonoscopy d) Advise the patient to go to the nearest emergency department for treatment e) Send for an urgent CBC

🇨🇦 MCCQE1,2 | #Case_245 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ B 🔎 Explanation Sitagliptin (choice B) is a dipeptidyl peptidase-4 (DPP-4) inhibitor that prevents breakdown of glucagon-like peptide-1 (GLP-1) and increases its level. GLP-1 is an incretin hormone with multiple physiologic effects. It stimulates the release of insulin from beta-cells and decreases glucagon secretion from alpha-cells in a glucose-dependent manner, resulting in a decrease in blood glucose levels. There is minimal risk of hypoglycemia with DPP-4 use. Two classes of antihyperglycemic agents increase the concentration of GLP-1: DPP-4 inhibitors and GLP-1 receptor agonists. Sitagliptin is not associated with weight gain which is an advantage in this case since the patient is obese. ⚠ Glimepiride (choice A), a sulfonylurea, lowers blood glucose level by stimulating the release of insulin from pancreatic beta-cells. It binds ATP sensitive potassium channel receptors, which causes membrane depolarization, increase in intracellular calcium, and secretion of insulin. The insulin release is not glucose dependant. It has no effect on alpha cells or glucagon release. ⚠ Repaglinide (choice E) acts by stimulating release of insulin from pancreatic beta-cells. It acts on a different binding site than the sulfonylurea. Repaglinide increases the amount of insulin released in a natural and physiological pulsatile pattern. It has shorter duration of action and is used for pre-prandial administration. It does not act on alpha cells. ⚠ Acarbose (choice D), an alpha-glucosidase inhibitor, delays the intestinal hydrolysis of oligo- and disaccharides. Consequently, the absorption of monosaccharides after a meal is delayed. It is used for control of prandial hyperglycemia. It does not act on pancreatic alpha or beta cells. ⚠ Pioglitazone (choice C) improves glycemic control by improving insulin sensitivity through its action on peroxisome proliferator-activated receptor (PPAR) gamma, and affects lipid metabolism through action on PPAR alpha. Together, these can increase glucose uptake and utilisation in the peripheral organs, decrease gluconeogenesis in the liver, thereby reducing insulin resistance and improve lipid profile. It has no action on pancreatic alpha or beta cells. 🔖Key point: Incretin mimetics, such as Exenatide, act on both alpha and beta cells of pancreas in glucose dependant manner and are associated with minimal risk of hypoglycaemia

🇨🇦 MCCQE1,2 | #Case_245 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 58-year-old man with type 2 diabetes mellitus, diagnosed 3 years ago, has come in for his annual check-up. He also has a history of hypertension and hyperlipidemia. He is on metformin 1000 mg twice a day. He is compliant with his medications but has a sedentary life style (body mass index = 31). His blood biochemistry is remarkable for glycated hemoglobin of 7.5%. You recommend addition of a second oral hypoglycemic agent. Which of the following hypoglycemic agents that acts on both alpha and beta cells of pancreas would be a suitable addition to his current management? a) Glimepiride b) Sitagliptin c) Pioglitazone d) Acarbose e) Repaglinide

🇨🇦 MCCQE1,2 | #Case_244 | #answer 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 ✅ C 🔎 Explanation A COPD exacerbation can be triggered by a range of factors such as viral/bacterial infections, environmental irritants, CHF & PE. Exacerbations are indicated by an increase in coughing and sputum production/volume from baseline, sputum purulence; wheezing, chest tightness and fevers may also present. Investigations should include: CBC, Serum chemistries, ABG (if severe), ECG, CXR, Blood/Sputum cultures. Management should consist of: 1. An assessment of ABC’s; 2. Supplemental O2; 3. Bronchodilators by nebulizer (e.g. salbutamol, ipatropium); 4. Systemic corticosteroids (e.g. IV solumedrol); 5. Antibiotics (if indicated: i.e., purulent sputum, elevated WBC’s, fevers...etc) e.g. doxycycline, trimethoprim-sulfamethoxazole and amoxicillin clavulanate to cover the usual suspects (Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis). ⚠ BiPaP (b) is reserved for severe exacerbations. ⚠ Option (e) is indicated in patients with deteriorating arterial blood gas (ABG) values, altered mental status (AMS) and progressive respiratory fatigue. 🔖 PEARL: Management of COPD exacerbation should include: ABC’s, O2, bronchodilators, systemic steroids, and antibiotics

🇨🇦 MCCQE1,2 | #Case_244 〰〰〰〰〰〰〰〰〰〰〰〰〰〰 A 72-year-old woman with a history of COPD and arthritis presents to the ED with difficulty breathing. Her caregiver tells you she is “feverish”, breathing harder than normal and coughing up much more sputum which has turned thick and green. Your management plan should consist of: a) ABC’s, supplemental O2 and bronchodilation b) ABC’s, BiPAP c) ABC’s, O2, bronchodilators, systemic steroids, antibiotics d) ABC’s, systemic steroids and antibiotics e) Immediate intubation and admission to the ICU