Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ID - Awesome
Random ID questions
| Question | Answer |
|---|---|
| most common cause of presence of visible blood in the stool days after eating food. what is the mechanism? | STEC strain E. coli O157:H7 - vascular damage by producing a Shiga toxin |
| bloody stool, abdominal tenderness and leukocytosis, no fever - what organism? | STEC strain E. coli O157:H7 |
| symptoms occur less than 24 hours after ingestion - diarrhea, nausea, vomiting | Bacillus cereus and Staphylococcus aureus toxins |
| foodborne gastroenteritis, stools are non bloody, and + fever - what organisms | Campylobacter jejuni and Yersinia enterocolitica |
| most appropriate test to evaluate a possible tuberculous pleural effusion | pleural fluid adenosine deaminase; > 70 units/L is highly specific for tuberculous effusion, whereas < 40 units/L all but excludes it |
| pleural fluid effusion has ADA > 70 - wtd. What if you do nothing? | If pleural adenosine deaminase is elevated, empiric therapy for tuberculosis should be started and pleural biopsy should be performed; If left untreated, the effusion will resolve in 2-4mo, but then 65% will develop active TB in 5 years |
| how sensitive is a pleural fluid stain for acid fast bacilli if suspecting TB? how about a pleural fluid culture for acid fast bacilli? | 5% and 24%. Don't use them. Use ADA instead. |
| how to tx bedbug bites | topical steroids and antihistamines for symptomatic relief; will resolve spontaneously |
| ivermectin to treat what? | parasites such as strongyloides and scabies, also topical shampoo for lice |
| first line to treat scabies | permethrin |
| fever and constitutional symptoms 1 to 3 weeks after ingestion of contaminated food or water. Abdominal pain, cough, and chills, rose spot rash, faint salmon-colored macules on the trunk and abdomen, during the second week of illness. | typhoid fever -The diagnosis is established by identifying Salmonella typhi in blood, urine, stool, or, occasionally, bone marrow. |
| pharyngitis and cervical lymphadenopathy. Malaise, headache, and low-grade fever often precede the development of these findings. Tender posterior cervical lymphadenopathy and generalized lymphadenopathy are common findings | EBV - test with heterophile |
| if immunocompromised pt is exposed to varicella zoster active infection, what to do? how to monitor? | immunocompromised or pregnant should receive a VZIG product or intravenous immune globulin within 96 hours of exposure. should be monitored for varicella for 28 days after exposure because the immune globulin may prolong the incubation period |
| what to recommend to a pt who gets recurrent UTI post coital | The recommended prophylaxis against recurrent UTI is liberal fluid intake and postcoital voiding. Stop using spermicides. If this doesn't work, then post-coital cipro |
| Ceftaroline - what is it | new β-lactam fifth-generation cephalosporin, works for MRSA and other aerobic and anaerobic gram-positive organisms and aerobic gram-negative bacteria, and it can be used for complicated soft tissue infections and community-acquired pneumonia. |
| ring enhancing brain lesions that are greater than 2.5 cm in diameter on neuroimaging - wtd | should be excised or aspirated under CT guidance, sent for histology and culture |
| drug of choice for immunocompromised patients with invasive pulmonary aspergillosis | Voriconazole |
| galactomannan antigen immunoassay | non–culture-based method of diagnosing invasive aspergillosis |
| Standard treatment of the first time Clostridium difficile infection | Oral metronidazole |
| Define severe Clostridium difficile infection. What to treat with? | White blood cell count of 15,000 or greater, serum creatinine level greater than 1.5 times the baseline. Treat with oral vancomycin |
| Define complicated Clostridium difficile infection. What to treat with? | Severe disease (15,000 WBC, serum creatinine >1.5 times baseline) as well as hypotension, ileum, megacolon. Treat with oral vancomycin and IV metronidazole. |
| When to switch a patient with chronic kidney disease from hydrochlorothiazide over to a Loop diuretic? | When the patient is clinically volume overloaded and it looks like hydrochlorothiazide isn't working for them anymore |
| What is the formula for calculating the gap gap | Expected bicarb = (calculated anion gap -12) + measured bicarb. Less than 22 means there is an additional non-gap metabolic acidosis; greater than 26 means there is an additional metabolic alkalosis. |
Created by:
christinapham
Popular USMLE sets