U world IM- 55% Flashcards

1
Q

purulent conjunctivitis and suppurative preauricular lymphadenitis should raise suspicion for infection with?

A

Francisella tularensis, bartonella henselae and herpes simplex virus

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2
Q

An 18-year-old man comes to the emergency department due to 3 days of fever, cough, and eye pain. The patient noticed his left eye was red a few days ago, and it has become progressively more painful. During this time, he also has had a persistent, nonproductive cough. The patient is an avid hunter of small game, including beavers, squirrels, and hares. He and his girlfriend returned from a hunting trip a week ago. Temperature is 38.3 C (100.9 F), blood pressure is 100/70 mm Hg, pulse is 92/min, and respirations are 20/min. The left eye is erythematous and has purulent drainage and a small corneal ulceration. The right eye is mildly injected but is otherwise normal. Lung sounds are diffusely coarse. Several tender and enlarged left anterior cervical lymph nodes are noted; a left preauricular lymph node is spontaneously draining malodorous fluid. Chest x-ray reveals peribronchial infiltrates and small, bilateral pleural effusions. Which of the following is the most likely cause of this patient’s presentation?

Options:
A. adenovirus
B. francisella tularensis
C. candida albicans
D. Leptospira
E. Yersinia Pestis

A

Franicsella Tularensis

-this is a gram negative coccobacillus that is transmitted through hunting wild animals or exposure to an infected tick bite. There will be a single ulcerative lesion at the site and cause ulceroglandular disease (regional lymphadenopathy_ but it can also cause oculoglandular disease if you contaminate your eyes)

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3
Q

A 56-year-old man comes to the office for a routine preventive visit. He works as a welder on an oil rig and currently feels well. The patient has a history of hypertension and hyperlipidemia, which are well controlled with oral medications. He has smoked a pack of cigarettes daily since age 14 and has been unable to quit despite repeated attempts. The patient drinks alcohol socially and does not use illicit drugs. His father died due to complications of Alzheimer disease, and his mother died from ovarian cancer. Screening colonoscopy at age 52 revealed a 0.5-cm hyperplastic polyp. Vital signs are within normal limits. Physical examination shows no abnormalities. Which of the following screening tests is recommended for this patient?

A

Low dose CT scan of the chest

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4
Q

low does CT scan of the chest is recommended for those who have smoked more than _ pack years

A

20

  • screening should begin at age 50 and continue to age 80 or until greater than 15 years of smoking cessation is achieved
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5
Q

one time screening for abdominal aortic aneurysm with an abdominal ultrasound is recommended for men age _

A

65-75 who have ever smoked

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6
Q

bone mineral density screening for osteoporosis for women age _ and younger at increased risk

A

65

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7
Q

a _ year internal is generally recommended for screening colonoscopy.

A

10 year interval

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8
Q

the initial evalulation of anovulatory infertility includes

A

TSH and prolactin levels

high prolactin will suppress GnRH levels and therefore LH, estrogen.

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9
Q

what is a progesterone withdrawal test used for ?

A

to evaluate estrogen activity in patient with secondary amenorrhea

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10
Q

what is a progesterone withdrawal test used for ?

A

to evaluate estrogen activity in patient with secondary amenorrhea

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11
Q

the main measure of association in a case control study is

A

the exposure odds ratio

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12
Q

leading cause of blindness in industrialized countries

A

macular degeneration

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13
Q

what is the earliest finding in macular degeneration

A

distortion of straight lines that will appear wavy

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14
Q

risk factor for macular degeneration

A

increasing age, and smoking

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15
Q

symptoms of macular degeneration

A

drusen deposits in the macular

distortion of driving and reading

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16
Q

lens opacifications is the cause of visual loss from

A

cataracts

17
Q

an enlarged blind spot may be seen with

A

papilledema

18
Q

what is the Gause of glaucoma

A

increased intraocular pressure

19
Q

visualization of straight lines is a task that requires fine visual acuity which is controlled primarily by the

A

centrally located macula

20
Q

A 48-year-old woman comes to the emergency department due to a day of fever and skin rash. Eight months ago, the patient was found to have an adnexal mass and elevated CA-125 level. She underwent a hysterectomy with bilateral salpingo-oophorectomy and lymph node dissection. Histopathology showed serous carcinoma of the ovary, and she received adjuvant chemotherapy treatment. A recent imaging study revealed metastatic lesions in the liver, and a new chemotherapy regimen was administered a week ago. Temperature is 38.8 C (102 F), blood pressure is 110/60 mm Hg, and pulse is 114/min. Cardiopulmonary auscultation reveals no abnormalities other than tachycardia. The abdomen is nontender, and the surgical scars are well healed. The trunk has several indurated, nontender macules and pustules. Some of the lesions have become gangrenous ulcers. Complete blood count is as follows:

Hemoglobin 8.8 g/dL
Platelets 102,000/mm3
Leukocytes 2,800/mm3
Which of the following is the most likely cause of this patient’s skin lesions?

A.
Cutaneous metastasis

B.
Drug-induced hypersensitivity reaction

C.
Gram-negative bacteremia

D.
Latent virus reactivation

E.
Pyoderma gangrenosum

A

Pseduomoas aeruginosa

-in immunocompromised patients pseudomonas is one of the most common opportunistic infections and can present with a cutaneous infection called ecthyma gangenosum

it invades the vascular media, adventitia and causes ischemic necrosis

pustules that are punched out gangrenous ulcers

21
Q

altered mental status in a patient with an acute exacerbation of chronic pulmonary disease should raise suspicion for hypercapnia encephalopathy and should be promptly investigated with

A

arterial blood gas to measure PaCO2

-requires high clinical suspicion

22
Q

patients with COPD are prone to _ retention due to ineffective ventilation

A

CO2 retention

23
Q

manifestations of hypercapnia are

A

neurologic

-headahce, encephalopathy with somnolence and asterisks, seizures, cerebral edema

24
Q

neurological complications of wernicke encephalopathy classical manifests as a triad of?

A

ataxia, encephalopathy, and oculomotor dsyfuntion