2013 - 5th Flashcards
A young male patient was brought to the casualty with abdominal pain, nausea and vomiting. The patient looked very ill and dehydrated. Earlier that day, he passed large amounts of urine and was feeling unusually thirsty too. His blood glucose was found to be very high, pH was 7.23 and urine was positive for ketones. A diagnosis of diabetic ketoacidosis complicating undiagnosed case of type 1 diabetes mellitus was confirmed. Which of the following would be the initial step in managing this patient?
A. Infusion of normal saline and insulin immediately
B. Wait for the ICU setting to give insulin
C. Administration of Ringer’s lactate and subcutaneous insulin
D. Administer insulin first then check the fluid levels
E. Wait for electrolyte results then administer insulin and NS
E. Wait for electrolyte results then administer insulin and NS
Note: K level should be < 4 replace if low or administer NS first because the patient is dehydrated.
A 17 years old patient had back pain then developed grouped vesicular lesions on her trunk that was confined to a dermatome, what is the causative agent?
A. Herpes Zoster Virus
B. Herpes Simplex Virus
A. Herpes Zoster Virus
A women with idiopathic intracranial hypertension came to the hospital to do LP. what is the most common complication of LP?
A. headache
B. epidural hematoma
C. transtentorial herniation
D. infection
A. headache
A 28 years old engineer who was previously healthy. he had hypopigmentation spots on unexposed area of his trunks and body. What is the most likely cause?
A. Mycosis fungoides
B. Chemical leukoderma
C. Hansen’s disease
D. Pityriasis versicolor
E. Early vitiligo
D. Pityriasis versicolor (not sure)
Scenario describing Cushing syndrome. what is the best initial test?
A. Serum cortisol
B. dexamethasone suppression test
B. dexamethasone suppression test
what is the most sensitive indicator of contrast-induced nephropathy?
a. urine output < 600
b. hematuria
c. rising creatinine > 26 in 24 hours
c. rising creatinine > 26 in 24 hours
A 36-year-old obese female complains of frequent headaches, tinnitus, and visual obscurations. On neurological examination, fundoscopy reveals papilledema. She also had signs of sixth cranial nerve palsy. What is the likely diagnosis according to this patient’s presentation?
Idiopathic intracranial hypertension
MSD Raed ‘headaches’
Idiopathic Intracranial Hypertension
* Headache, pain in the neck and shoulders and upper back. * Worse with the morning and with coughing/straining.
* Pulsatile tinnitus.
* Transient visual obscurations.
* Diplopia ( Abducens Nerve Palsy )
A young lady experienced chest tightness and wheezes upon exposure to dust. she came to ER with O2 saturation 92%. on examination she had bilateral rhonchi. what will the spirometry most likely show? what is true about her condition?
a. obstructive pattern significantly reversible with bronchodilator
b. normal spirometry
c. obstructive pattern largely irreversible with bronchodilator
a. obstructive pattern significantly reversible with bronchodilator
Allergic asthma presents this way clinically and will have a reversible obstructive pattern on PFT.
49-year-old woman has a history of joint pain and morning stiffness for four months. Examination reveals swelling of the wrists and MCPs. Which of the following can be used to monitor the activity of rheumatoid arthritis?
A. C-RP
B. Rheumatoid factor
C. Complement levels
A. C-RP ( CRP is useful to detect the disease activity and the respond to therapy however RF is not useful for the activity its more used in the prognosis of the disease, these information are from the MSD of dr. mona)
A 25-year-old man presented with one month history of right sided chest pain with progressive shortness of breath and dry cough. He now has a fever as well. Upon examination, his right chest had increased vocal resonance, dullness on percussion and normal breath sounds compared to the left side. What is the most likely diagnosis?
a. left pneumothorax
b. Right consolidation
c. Right effusion
d. Left effusion
e. Right collapse
b. Right consolidation
Consolidation due to pneumonia usually will reveal these physical examination findings. The other diagnoses don’t fit with the findings.
Which results would be a cause of established essential hypertension rather than secondary hypertension in a young lady?
a. Bilateral renal cysts
b. LowK
c. pH 7.4
d. Hypercalcemia
e. Hypernatremia
c. pH 7.4
According to AMBOSS: in secondary HTN pt will have metabolic alkalosis and low K. so all the options are for secondary expect C.
A 30 year old female who is a known case of systemic lupus erythematosus, presented with polyarthralgia, palor and jaundice. Which of the following tests confirms the diagnosis?
A. Direct Coombs test
B. Bone Morrow Aspiration
C. Osmotic fragility test
A. Direct Coombs test (SLE can cause autoimmune hemolytic anemia which will be diagnosed by positive direct coombs test)
A 65 years old man with with melena. He had 4 upper endoscopies, 3 colonoscopies, and barium follow through that all turned out to be negative. what is the best next step ?
A. CT of abdomen
B. Mesentric angiography
C. CT-angiograpy with intravenoues heparin
D. Wireless capsule endoscopy
E. Repeat colonscopy
D. Wireless capsule endoscopy
Wireless capsule endoscopy indication: obscure gastrointestinal bleeding, meaning that it is used as an investigation tool when the site/cause of bleeding is unknown.
A 48-year-old woman with alcoholic cirrhosis is evaluated because of increasing ascites and a right-sided pleural effusion. Her liver disease is classified as Child-Pugh Class B. She has no history of encephalopathy. The ascites is being managed by dietary sodium restriction and administration of furosemide and spironolactone but has required large-volume para-centesis approximately every 10 days. Paracentesis shows low-protein ascetic fluid and a serum-ascites gradient of 1.5. Previous attempts to increase her diuretic dosage resulted in orthostasis and azotemia and have only partially reduced the volume of ascites.
On physical examination, she has tense ascites but no pedal edema. Which of the following is most appropriate at this time?
A. TIPS
B. Portocaval shunt
C. Peritoneocaval shunt
D. Repeat Abdominal paracentesis
E. Chest tube draining the ascites and pleurodesis
A. TIPS
Management of ascites:
1. Medications; diuretics: spironolactone, and if the response is poor furosemide is added.
2. If resistant to medical therapy, paracentesis is done.
3. If resistant/refractory ascites, TIPS is done as a last resort
elderly patient with atrial fibrillation presented with severe peri-umbilical pain, no guarding or tenderness , what is the investigation you want to order?
A. CT of abdomen
B. Mesenteric angiography
C. laporotomy
B. Mesenteric angiography
ACUTE MESENTERIC ISCHEMIA:
Caused by compromised blood supply, usually an emboli due to a cardiac origin (A Fib). Therefore mesenteric angiography is the definitive diagnostic method.
Patients usually present with severe abdominal pain that is disproportionate to physical findings.
A 63 years old hypertensive male had a stroke. After which, he couldn’t read but he could write and speech was intact. he also had right homonymous hemianopia. where is the lesion?
A. Left heschl’s gyrus
B. Left visual cortex
C. Corpus Collusum
D. Corpus Callosum and left visual cortex
E. Broca area
D. Corpus Callosum and left visual cortex
• Lesions of the left heschl’s gyrus produce problems of speech perception with difficulty in discriminating speech.
• Broca’s area function is speech production and language comprehension.
• Left visual area explains only the right homonymous hemianopia.
• Lesions in corpus callosum causes inability to read with intact speech and writing abilities.
Young male, sudden left sided chest pain. Upon examination, the trachea deviated to the right and there was hyper-resonance, decreased breath sounds in his left side.
a. left pneumothorax
b. Right pneumothorax
c. Left effusion
d. lung collapse
a. left pneumothorax
Pneumothorax will show hyperresonance on percussion, decreased breath sounds on auscultation, and tracheal deviation to the opposite side.
A 58 year old obese female presented with pain in her left knee associated with morning stiffness that lasted 15 minutes. What is the most likely diagnosis?
Osteoarthritis
You were about to prescribe PPI to a lady. She was worried about the side effects. Which of the folowing nutrients require acid for absorption?
A. Vit B12, Vit C, Vit E
B. iron, Vit B12, Vit E
C. iron, Vit B12, Calcium
D. Vit B12, Vit C, Vit B12
C. iron, Vit B12, Calcium
PPIs are given to lower the acidity, therefore any nutrients that require acidity for absorption will be affected.
What is the quickest way to decrease cerebral edema?
A. Mannitol
B. Hyperventilation
C. Head elevation
B. Hyperventilation
Hyperventilation causes cerebral vasoconstriction, which reduces cerebral blood flow and volume to decrease the oxygen supply in both normal and injured areas. Hyperventilation decreases the intracranial pressure and relaxes the brain.
A 24 year old man presented with weakness and fatigue. On physical examination, he was found to have postural hypotension and raised JVP. Provided are his lab results: PO2: 12.8 Kpa (normal); PCO2: 24 mmHg; HCO3: 15 mmHg; pH: 7.28; Na: 135; Urine Na: 9; Glucose: 5; Urea: 7; Chloride: 115 (high); S-osmolality: 308; K: 3.8. What is the diagnosis?
a. Lactic acidosis
b. Ethanol intoxication
c. Renal failure
d. Renal tubular acidosis
e. Diarrhea
e. Diarrhea
Reminder of plasma anion gap: (Na + K) – (HCO3 + Cl), normal anion gap with signs of dehydration -> diarrhea
Vogelstien model, Which of the following gene is responsible for the transformation of adenoma into carcinoma?
A. p53 mutation
B. activation of kras oncogene
C. DCC mutation
D. APC mutation
E. DNA methylation
A. p53 mutation
a known hypertensive diabetic smoker presented with compressing chest pain and diaphoresis. his ECG was given and he has anterior MI. what murmur would you hear on auscultation?
A. pansystolic murmur at the apex
B. ejection systolic murmur
C. mid-diastolic murmur
D. early diastolic murmur
A. pansystolic murmur at the apex
MI -> rupture chordae tendineae -> Mitral regurgitation -> Pan systolic murmur.
A pan systolic murmur at left lower sternal border- > Tricuspid regurgitation.
A 34-year-old male presented with backache and spinal deformity with kyphosis. He also reports SOB on exertion and palpitations. His BP is 160/50. A murmur was heard on auscultation. Which of the following is likely to be present in this patient?
A. Aortic regurgitation
B. Mitral regurgitation
C. Mitral stenosis
D. Mitral valve prolapse
A. Aortic regurgitation
-Backache and spinal deformity with kyphosis are features of ankylosing spondylitis,and it is one of the etiologies of Aortic regurgitation.
-160/50=wide pulse pressure ,which is one of the physical signs that is found in AR.