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Forwarded from Medical Mnemonics
๐Ÿงฉ Medical Mnemonics

Learn Fish-vertebra sign in Osteoporosis by #visual_mnemonics.

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๐Ÿ–ฅ IMAGING Explanation

The โ€œfish-vertebraโ€ sign is a smooth deformity of the vertebral bodies, with a characteristic biconcave body occurring due to a squared-off depression of the vertebral end-plates and compression by adjacent intervertebral discs. This radiologic sign can be seen in osteoporosis, osteomalacia, hyperparathyroidism, Paget disease, sickle cell disease, multiple myeloma and systemic lupus erythematosus.

๐Ÿ’ป Join us in the official Instagram page: Online Medical School

#radiology
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ยฉMedical Mnemonics
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A 13-year-old white female reports a 6 month history of intermittent abdominal cramping, with each episode becoming progressively worse. Based on her history, there is no obvious relationship to eating, voiding, or defecating. She report that she has not yet begun menstruating and is not sexually active. Her weight has been stable. She appears to be in mild emotional distress about being the โ€œlast girl in her class to have a periodโ€. She is in no physical discomfort and her vital signs are normal. Secondary sexual characteristics appear to be developing normally. She is in the 57th percentile for height and the 65th percentile for weight. A complete physical examination confirms your presumptive diagnosis.
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โœ… C

The key to making a diagnosis of imperforate hymen, aside from the obvious finding on physical examination, lies in the systematic drawing of inferences. One can speculate that this patientโ€™s recurrent crescendo abdominal cramping represents six menstrual sheddings, with no egress from the body. Her delay in menarche, despite normal growth parameters, offers another clue that the structural amenorrhea is present. Amounts of retained blood vary among patients; up to 3000 mL have been reported. A large volume can accumulate without causing any permanent damage, and subsequent fertility is usually normal. Hymenotomy will relieve the pressure, and normal menses should ensue.
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A 58-year-old male presents with nausea and vomiting for two days. He had noticed that he lost 7 kg over the last two months but he did not think too much about it, as he was overweight. Past medical history is significant for smoking 20 packs of cigarettes a year.

Physical examination reveals an enlarged, hard, painless left-sided supraclavicular lymph node.
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โœ… B

There are approximately 300 lymph nodes in the neck region. A regional lymphatic system is composed of the first, second, third and even fourth or much more intercalated nodes along the lymphatic route from the periphery to the venous angle or the thoracic duct. The third or fourth node is usually termed the last-intercalated node or end node along the route.

One of the supraclavicular nodes is known to correspond to the end node along the thoracic duct. It is generally called Virchow's node. It is the site of Virchowโ€™s metastases of gastric cancer (choice B). It is also called the sentinel node. Virchowโ€™s node is where the lymphatic drainage from the thoracic duct enters the venous circulation via the left subclavian vein. By the time gastric cancer presents with a Virchowโ€™s node it is already in its advanced stage. Various intra-abdominal malignancies besides gastric cancer could present with the Virchowโ€™s node (e.g. gallbladder, pancreas, kidneys, testicles, ovaries, or prostate).

โš  Esophageal cancer (choice A), Hodgkin lymphoma (choice C), and Lung cancer (choice D) can present with an enlarged right supraclavicular lymph node, which tends to drain thoracic malignancies. Out of the choices given only gastric cancer is most likely to present with the Virchowโ€™s node.

โš  Thyroid cancer (choice E) can usually be found relatively early because of its location. When it metastasizes to lymph nodes, the pretracheal, paratracheal and prelaryngeal nodes are affected.

๐Ÿ”– Key point:

The left supraclavicular adenopathy (Virchow's node) suggests abdominal malignancy (e.g. stomach, gallbladder, pancreas, kidneys, testicles, ovaries, or prostate).
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A 53-year-old man presented to his family physician with episodic retrosternal chest pain that radiates to the left shoulder. During the last four months, he experienced this pain three times, the last of which was two weeks ago and all were while exercising on treadmill and while running for a few minutes. In all three occasions pain subsided within about 5 minutes of rest. He does not smoke and rarely drinks alcohol.

Physical examination is normal. Urine analysis, complete blood count, fasting blood sugar, lipid profile, serum urea and electrolytes, chest X-ray and 12-lead ECG are all normal. Chronic stable angina is suspected.
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โœ… C

Exercise ECG testing (choice B) should be done next to verify or refute the diagnosis of angina. A 12-lead ECG is done just before, during and after standardized exercise protocol with increasing work load. Flat or down sloping of ST segment during exercise confirms diagnosis of ischemia. These ECG changes together with the typical symptoms of angina confirm the diagnosis of chronic stable angina.

โš  There is no indication for measurement of cardiac enzymes (choice A) in this patient. These cardiac biomarkers are measured if the diagnosis of unstable angina or ST elevation myocardial infarction is suspected. Unstable angina is suspected if frequency and duration of pain attacks is increasing; pain is not responding to treatment with nitroglycerine, pain occurs at rest or angina following myocardial infarction.

โš  Cardiac imaging (choice C) is done only if ECG exercise testing is abnormal to evaluate the extent and site of ischemia.

โš  Coronary angiography (choice D), an invasive procedure, is indicated only if: diagnosis of disabling chronic stable angina is confirmed; the patient is at high risk of coronary artery disease; diagnosis or prognoses are uncertain; the patient cannot undergo non-invasive testing.

โš  Echocardiography (choice E) is not indicated in this patient at this point. The initial test in patients able to exercise should be exercise ECG.

๐Ÿ”– Key point:

In patients with typical episodic chest pain provoked by physical activity, diagnosis of chronic stable angina should be confirmed or refuted by ECG exercise testing
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A 23-year-old female G1P0 at the 34th week of gestation presents to your department with eclampsia. She had last seen her ObGyn at the 20th week of gestation, and the pregnancy was developing normally. 

On physical examination, her BP is 190/115 mmHg, temperature 37.7ยฐC, pulse 110 bpm, and respirations 20 bpm. After appropriate initial therapy is given and stabilization achieved, the patient delivers vaginally a 3000g boy. The immediate postpartum period at the hospital is uneventful. You visit the patient few days later for counseling before she is discharged from the hospital. Her BP is 145/100 mmHg.

BP remains elevated in the following 4 weeks, 160/110 mmHg on average. The patient has been breastfeeding the baby.
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โœ… B

Hypertension may develop for the first time postpartum, and in 50% of women who had hypertension during pregnancy, it may continue after delivery. If BP is mildly elevated, treatment is usually not required, but close monitoring is advised. In patients with systolic BP > 155 mmHg or diastolic BP > 105 mmHg, antihypertensive medications should be given. Labetalol and nifedipine are the most commonly used. For women who used ACE inhibitors before pregnancy, they can resume taking them. The recommended dose for nifedipine is 10 mg orally every 6 hours (choice B) and a maximum dose of 120 mg/day.

โš  Some guidelines suggest avoiding methyldopa (choice A) postpartum because of the risk of postnatal depression.

โš  Metoprolol 50 mg every 12 hours (choice C) is incorrect. Metoprolol, nadolol, and atenolol are excreted in breast milk in high concentration and would not be the best choice of treatment for this patient.

โš  Hydrochlorothiazide 25 mg every 12 hours (choice D) and Furosemide 40 mg every 8 hours (choice E) are incorrect. Diuretics should generally be avoided in breastfeeding mothers because they significantly reduce milk production.

โš  Key point:

In postpartum patients with systolic BP > 155 mmHg or diastolic BP > 105 mmHg, antihypertensive medications should be given. Labetalol and nifedipine are the most commonly used
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A 64-year-old man presents with several months of progressive weakness of the upper and lower extremities, along with ongoing pain in the affected areas. Physical examination shows difficulty standing up from a chair and tenderness over the affected areas. He is also found to have a violaceous erythematous rash over his eyes. A working diagnosis of dermatomyositis is made.
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Which of the following features, on history, would be more suggestive of dermatomyositis than polymyositis?
Anonymous Poll
31%
A. Autoimmune disorder
25%
B. Cancer
30%
C. Connective tissue disorder
9%
D. Human immunodeficiency virus infection
6%
E. Parasitic infection
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โœ… B

Dermatomyositis is an inflammatory myopathy, which bears many clinical similarities to entities such as polymyositis and autoimmune myositis. It is characterized by muscle weakness, tenderness, and a "heliotrope rash" around the eyes. Bloodwork will show inflammation (elevated leukocytes and ESR/CRP) in addition to an elevated CK.  It may be confirmed with muscle biopsy.  Treatment modalities include glucocorticoids, immunosuppressants or immune modulation.

Malignancies (choice B) may be associated with dermatomyositis in up to 15% of cases. The most common associations are ovary, breast, melanoma, GI, and lymphoma.

โš  Autoimmune disorders (choice A) such as inflammatory bowel disease, vasculitis or celiac disease, are more likely to be associated with polymyositis than dermatomyositis.

โš  Connective tissue disorders (choice C) can be associated with both dermatomyositis and polymyositis.

โš  HIV (choice D) or parasitic infection (choice E) are more commonly associated with polymyositis.

๐Ÿ”– Key point:

Dermatomyositis is one of a number of inflammatory myopathies which can cause muscle weakness, pain, and tenderness. It is usually accompanied by a heliotrope rash and may be associated with malignancy in up to 15% of cases
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Forwarded from Medical Mnemonics
๐Ÿงฉ Medical Mnemonics

Black named disorders

โž–๐Ÿ’€ Black death (plague): black areas from bleeding into skin
โž–๐Ÿ•โ€๐Ÿฆบ Black dog: major depression disorder
โž–๐ŸงŸโ€โ™‚ Black sickness (Kala azarโ€”leishmaniasis): dark skin on extremities
โž–๐Ÿซ Black lung: coal dust pneumoconiosis
โž–๐Ÿšฝ Blackwater fever: severe plasmodium falciparum malaria (dark urine)

#confusing_terms
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ยฉMedical Mnemonics
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Forwarded from EDL Backup Channel
โš  ๐Ÿ”” ๐’๐€๐•๐„ ๐“๐‡๐ˆ๐’ ๐‹๐ˆ๐’๐“ ๐…๐Ž๐‘ ๐€ ๐‘๐€๐ˆ๐๐˜ ๐ƒ๐€๐˜ ! โคต


1. ๐— ๐—˜๐——๐—œ๐—–๐—”๐—Ÿ ๐—”๐— ๐—”๐—ญ๐—ข๐—ก ๐ŸŒ

2. ๐—–๐—”๐—ฆ๐—˜ - ๐—•๐—”๐—ฆ๐—˜๐—— ๐— ๐—–๐—ค๐—ฆ ๐Ÿ’ฏ

3. ๐Ÿ‡จ๐Ÿ‡ฆ ๐— ๐—–๐—–๐—ค๐—˜ ๐—ฃ๐—ฅ๐—˜๐—ฃ๐—”๐—ฅ๐—”๐—ง๐—œ๐—ข๐—ก

4. ๐Ÿฉบ ๐—˜๐——๐—Ÿ ๐— ๐—˜๐——๐—œ๐—–๐—ข๐—ฆ (๐— ๐—˜๐——๐—œ๐—–๐—”๐—Ÿ ๐—•๐—ข๐—ข๐—ž๐—ฆ ๐—”๐—ก๐—— ๐—Ÿ๐—œ๐—ก๐—ž๐—ฆ)

5. ๐Ÿ“š ๐—˜๐——๐—Ÿ ๐—ฃ๐—›๐—”๐—ฅ๐— 

6. ๐Ÿ› ๐—ข๐—ก๐—Ÿ๐—œ๐—ก๐—˜ ๐— ๐—˜๐——๐—œ๐—–๐—”๐—Ÿ ๐—ฆ๐—–๐—›๐—ข๐—ข๐—Ÿ

7. ๐—ฅ๐—˜๐—ฆ๐—œ๐——๐—˜๐—ก๐—–๐—ฌ ๐—œ๐—ก ๐—š๐—˜๐—ฅ๐— ๐—”๐—ก๐—ฌ ๐Ÿ‡ฉ๐Ÿ‡ช

8. ๐—ฃ๐—ฅ๐—”๐—–๐—ง๐—œ๐—–๐—˜ ๐—œ๐—ก ๐—”๐—จ๐—ฆ๐—ง๐—ฅ๐—”๐—Ÿ๐—œ๐—” ๐Ÿ‡ฆ๐Ÿ‡บ

9. ๐— ๐—•๐—•๐—ฆ & ๐—ฅ๐—˜๐—ฆ๐—œ๐——๐—˜๐—ก๐—–๐—ฌ ๐—œ๐—ก ๐—œ๐—ง๐—”๐—Ÿ๐—ฌ ๐Ÿ‡ฎ๐Ÿ‡น

10. ๐—ฅ๐—˜๐—ฆ๐—œ๐——๐—˜๐—ก๐—–๐—ฌ ๐—œ๐—ก ๐—จ๐—ž ๐Ÿ‡ฌ๐Ÿ‡ง

11. ๐—ฅ๐—˜๐—ฆ๐—œ๐——๐—˜๐—ก๐—–๐—ฌ ๐—œ๐—ก ๐—จ๐—ฆ ๐Ÿ‡บ๐Ÿ‡ธ

12. ๐—ฅ๐—˜๐—ฆ๐—œ๐——๐—˜๐—ก๐—–๐—ฌ ๐—œ๐—ก ๐—–๐—”๐—ก๐—”๐——๐—” ๐Ÿ‡จ๐Ÿ‡ฆ

13. ๐—™๐—ฅ๐—˜๐—ก๐—–๐—› ๐— ๐—˜๐——๐—œ๐—–๐—”๐—Ÿ ๐—•๐—ข๐—ข๐—ž๐—ฆ ๐Ÿ‡ซ๐Ÿ‡ท

14. ๐—š๐—˜๐—ฅ๐— ๐—”๐—ก ๐— ๐—˜๐——๐—œ๐—–๐—”๐—Ÿ ๐—•๐—ข๐—ข๐—ž๐—ฆ ๐Ÿ‡ฉ๐Ÿ‡ช

15. ๐— ๐—˜๐——๐—œ๐—–๐—”๐—Ÿ ๐—ฅ๐—˜๐—ฆ๐—˜๐—”๐—ฅ๐—–๐—› ๐ŸŽ“

16. ๐Ÿ“ธ ๐——๐—˜๐—ฅ๐— ๐—”๐—ง๐—ข๐—Ÿ๐—ข๐—š๐—ฌ ๐—”๐—ง๐—Ÿ๐—”๐—ฆ

17. ๐Ÿงฉ ๐— ๐—˜๐——๐—œ๐—–๐—”๐—Ÿ ๐— ๐—ก๐—˜๐— ๐—ข๐—ก๐—œ๐—–๐—ฆ (๐—Ÿ๐—˜๐—”๐—ฅ๐—ก ๐—˜๐—”๐—ฆ๐—œ๐—Ÿ๐—ฌ)
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A 39-year-old multigravida at 36 weeks gestation presents with a temperature of 40.0ยฐC (104.0ยฐF), chills, backache, and vomiting. On physical examination, the uterus is noted to be nontender, but there is slight bilateral costovertebral angle tenderness. A urinalysis reveals many leukocytes, some in clumps, as well as numerous bacteria.
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โœ… D

Pyelonephritis is the most common medical complication of pregnancy. The diagnosis is usually straightforward, as in this case. Since the patient is quite ill, treatment is best undertaken in the hospital with parenteral agents, at least until the patient is stabilized and cultures are available. Escheria coli is the offending bacteria in approximately 75% of cases. About 15% of women with acute pyelonephritis are bacteremic.
Ampicillin plus gentamicin or a cephalosporin (choice D) (e.g., Ceftriaxone, Cefepime) is typically used.

โš  The safety of levofloxacin (choice A) in pregnancy has not been established, and it should not be used unless the potential benefit outweighs the risk.

โš  Oral nitrofurantoin (choice B) may induce hemolysis in patients who are deficient in G6PD, which includes approximately 2% of women.

โš  Oral trimethoprim/sulfamethoxazole (choice C) is contraindicated late in pregnancy because they may increase the incidence of kernicterus.

โš  Intravenous doxycycline (choice E) is contraindicated because administration late in pregnancy may lead to discoloration of the childโ€™s deciduous teeth.

๐Ÿ”– Key point:

Acute pyelonephritis in pregnancy is treated in hospital with intravenous antibiotics (e.g., Ampicillin plus gentamicin, or Ceftriaxone, or Cefepime) until the patient is afebrile for 24 to 48 hours and symptomatically improved.
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