Nokea
Neural crest derivatives include:
- A. Adrenal cortical cells
- B. Melanocytes
- C. Langerhans cells
- D. Gastric epithelial cells
Correct Answer: B
Rationale: Melanocytes are derived from the neural crest and are responsible for pigment production in the skin.
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Concerning bulimia nervosa:
- A. Review of teeth may aid diagnosis
- B. Patients may get hypokalaemia
- C. Patients are likely to neglect their appearance
- D. There is an association with calluses on the dorsum of hands
Correct Answer: B
Rationale: Hypokalaemia is a common complication of bulimia nervosa due to purging behaviors. Dental erosion and calluses on the hands are also associated with bulimia.
Features of severe haemophilia A include:
- A. Retroperitoneal bleed
- B. Chronic arthropathy
- C. Prolonged bleeding time
- D. Increased APTT
Correct Answer: D
Rationale: Increased activated partial thromboplastin time (APTT) is a characteristic feature of haemophilia A due to the deficiency of clotting factor VIII.
Left axis deviation of the QRS complex is associated with all the following except
- A. Inflow ventricular septal defect
- B. Pulmonary atresia with intact interventricular septum
- C. Double outlet right ventricle with subaortic ventricular septal defect
- D. Noonan syndrome with pulmonary stenosis
Correct Answer: A
Rationale: Left axis deviation is not typically associated with inflow ventricular septal defect.
Which is a common, serious complication of rheumatic fever?
- A. Seizures
- B. Cardiac arrhythmias
- C. Pulmonary hypertension
- D. Cardiac valve damage
Correct Answer: D
Rationale: Cardiac valve damage is the most significant complication of rheumatic fever. Seizures, cardiac arrhythmias, and pulmonary hypertension are not common complications of rheumatic fever.
A female client who received partial-thickness and full-thickness burns over 40% of her body in a house fire is admitted to the inpatient burn unit. What fluid should the nurse prepare to administer during the acute phase of the client's burn recovery?
- A. Ringer's Lactate
- B. Normal Saline.
- C. Dextrose 5% in water (D5W)
- D. Hypertonic saline
Correct Answer: A
Rationale: Ringer's Lactate is the preferred fluid for burn resuscitation, as it helps maintain electrolyte balance and fluid volume.