Nokea
These causes often cause secretory diarrhoea except:
- A. Lactose intolerance
- B. E. coli infection
- C. Congenital chloridorrhoea
- D. Blind loop syndrome
Correct Answer: A
Rationale: The correct answer is A because lactose intolerance causes osmotic diarrhoea, not secretory diarrhoea. The other options (b-e) are causes of secretory diarrhoea.
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Regarding iron deficiency anemia, which of the following is true?
- A. Ferritin levels are elevated
- B. Red blood cell count is usually normal
- C. Hemoglobin is usually decreased
- D. Serum iron levels are elevated
Correct Answer: C
Rationale: In iron deficiency anemia, hemoglobin levels are usually decreased due to insufficient iron for red blood cell production.
Blau syndrome is associated with
- A. Amyloidosis
- B. Sarcoidosis
- C. Hemochromatosis
- D. Myeloma
Correct Answer: B
Rationale: Blau syndrome is associated with sarcoidosis
The following conditions can present in a newborn infant as a bullous eruption:
- A. Syphilis
- B. Mast cell disease
- C. Epidermolysis bullosa
- D. Phenylketonuria
Correct Answer: C
Rationale: Epidermolysis bullosa is a genetic condition causing blistering of the skin. Syphilis and mast cell disease can also cause bullous eruptions, but phenylketonuria does not.
Normal Heart
- A. Ventricular septal depolarization occurs from Lt ï‚® Rt
- B. During tachycardia diastolic time reduced than systolic time
Correct Answer: B
Rationale: During tachycardia, diastolic time is significantly reduced compared to systolic time.
A 3-year-old child diagnosed with congestive heart failure is receiving maintenance doses of digoxin and furosemide (Lasix). She is rubbing her eyes when she is looking at the lights in the room and her heart rate is 65 beats per minute. The nurse expects which laboratory finding?
- A. Hypokalemia
- B. Hypomagnesemia
- C. Hypocalcemia
- D. Hypophosphatemia
Correct Answer: A
Rationale: Hypokalemia is a common side effect of furosemide, a diuretic, and can exacerbate digoxin toxicity, which may present with symptoms such as visual disturbances and bradycardia.