Board Vitals Flashcards
How does infection with Mycoplasma pneumoniae present?
Atypical community-acquired pneumonia
Does Mycoplasma pneumoniae infection cause agglutination?
Yes
How long after Mycobacterium pneumoniae infection do cold agglutinin titers decline?
6 - 8 weeks
What conditions cause chronic cold agglutinin titers?
- Certain B-cell neoplasms
- Infectious mononucleosis
How much should the initial fluid challenge for sepsis-induced hypoperfusion be?
30 mL/kg
Have SSRIs shown a benefit in treating irritable bowel syndrome?
No
What is the next step in patients with irritable bowel syndrome who have already been treated with lifestyle interventions and addressed underlying motility issue?
As needed anti-spasmodic to be taken when stressed or for known triggers.
What is the next step if antispasmodics do not resolve symptoms in irritable bowel syndrome?
Tricyclic antidepressants
Which artery supplies the posteromedial papillary muscle in the heart?
Posterior descending artery
In patient with left dominant circulation, where can a thrombus dislodged from the left circumflex artery during PCI end up?
Posterior descending artery
What is the best way to evaluate for stool overflow incontinence?
Digital rectal exam
What is the next step if digital rectal exam does not show palpable fecal impaction in cases of overflow incontinence?
Abdominal X-rays
What is the treatment of fecal impaction?
- Disimpaction
- Colonic evacuation
- Maintenance regimen
What is the usual treatment of acute colonic ischemia?
Supportive care
When is surgery indicated for colonic ischemia?
- If it is associated with hypotension, tachycardia and abdominal pain without rectal bleeding
- Pancolonic ischemia
- Gangrene
What percentage of acute renal failure in hospitalized patients is attributed to intrinsic acute renal failure?
69%
In acute renal failure, does the glomerular filtration rate decrease faster or slower than the renal plasma flow?
Faster
Which is better vascularized - the renal medulla or renal cortex?
Renal cortex
What is the distribution of tubular necrosis in the kidney?
Patchy distribution
Is tubular necrosis correlated to the degree of renal dysfunction?
No
Is the fractional excretion of sodium lower or higher than 1% in acute tubular necrosis?
Higher
Which test can differentiate between vitamin B12 deficiency and folate deficiency?
Methylmalonic acid
What happens to methylmalonic acid in vitamin B12 deficiency?
It is elevated.
What happens to methylmalonic acid in folate deficiency?
It is normal.
What happens to homocysteine in vitamin B12 deficiency?
It is elevated.
What happens to homocysteine in folate deficiency?
It is elevated.
What should you use first to treat benign paroxysmal positional vertigo (BPPV)?
Epley maneuver
Should vestibular therapy be used in acute vertigo?
No
Metoclopramide and prochlorperazine are anti-dopaminergic and should be avoided in which medical condition?
Parkinson’s disease
Are most allergic reactions to penicillin IgE-mediated or not?
Most are not IgE-mediated
What kind of allergies is skin testing sensitive for?
IgE-mediated allergies
What percentage of patients report an allergy to penicillin?
5 - 10%
What percentage of patients with self-reported penicillin allergy will have negative skin testing?
90%
What type of allergic reaction do people usually have to penicillin - delayed reaction or IgE-mediated?
Delayed reaction
What are most allergic reactions to penicillin - delayed or IgE-mediated?
Delayed
Are the results of desensitization therapy long-lasting?
No
How long do the results of desensitization therapy for penicillin last?
As long as the patient is exposed to penicillin.
What deficiency causes Wernicke’s encephalopathy?
Thiamine
Which psychiatric disorder has the highest mortality rate?
Anorexia nervosa
Do people with body dysmorphic disorder fixate on their weight?
No
What are the possible causes of a patient having positive Hepatitis C antibody test and negative HCV RNA testing?
- Old resolved infection
- False positive
Do patients with limited life expectancy benefit from statin therapy to prevent cardiovascular events?
No
Which protein is a well-established risk factor for Alzheimer’s disease?
Apolipoprotein E
Which gene codes for apolipoprotein E?
APOE
Which chromosome is the APOE gene that encodes for apolipoprotein E located on?
19
Which allele on chromosome 19 is associated with a higher risk of Alzheimer’s disease?
Epsilon 4
What kind of flow volume loop does paradoxical vocal cord motion disorder have?
Flattening of inspiratory loop
Do patients with asthma have flattening of inspiratory loop on flow volume loops?
No
What is the treatment of paradoxical vocal cord motion disorder?
Cognitive behavioral therapy
What is the gold standard for diagnosing paradoxical vocal cord motion disorder?
Laryngoscopy
What is the most effective treatment for preventing long term complications in patients with atrial flutter?
Ablation
What is an Allay lamp used for?
Treatment of photophobia (emits only green light)
What is a Cafaly device used for?
Aborting or preventing a migraine
What is a single pulse transcranial magnetic stimulation (TMS) device used for?
Preventing a migraine
What is a Nerivio arm stimulator used for?
Aborting of migraine
What is a GammaCore vagus nerve stimulator used for?
Aborting of migraine (acute treatment during an attack)
Which patient populations get Listeria meningoencephalitis?
- Immunocompromised
- Elderly
- Pregnant
Which organism has gram-positive or gram-variable rods?
Listeria monocytogenes
How does Neisseria meningitidis show up on a gram stain?
Gram negative diplococcus
What is the most common complication of a Zenker’s diverticulum?
Aspiration
Is carbamazepine a P450 inducer or inhibitor?
P450 inducer
Is grapefruit juice a P450 inducer or inhibitor?
P450 inhibitor