In embryology:
- A. Most defects occur with teratogens in the first 2 weeks post-conception
- B. The urachus becomes the median umbilical ligament
- C. The mesonephric duct becomes the male organs
- D. The thyroid develops from the floor of the primitive larynx
Correct Answer: B
Rationale: The urachus becomes the median umbilical ligament. Most defects occur after the first 2 weeks, and the thyroid develops from the floor of the pharynx.
You may also like to solve these questions
A male client who reports feeling chronically fatigued has a hemoglobin of 11.0 grams/dl (110mmol/L), hematocrit of 34%, and microcytic and hypochromic red blood cells (RBCs). Based on these findings, which dinner selection should the nurse suggest to the client?
- A. Cheese pasta and a lettuce and tomato salad
- B. Beef steak with steamed broccoli and orange slices
- C. Broiled white fish with a baked sweet potato
- D. Grilled shrimp and season rice with asparagus salad
Correct Answer: B
Rationale: The client's lab results indicate iron deficiency anemia. Beef steak is rich in iron, and vitamin C from orange slices enhances iron absorption, making this the best choice to address the anemia.
An adult woman with primary Raynaud phenomenon develops pallor and then cyanosis of her fingers. After warming her hands, the fingers turn red and the client reports a burning sensation. What action should the nurse take?
- A. Apply a cool compress to the affected fingers for 20 minutes
- B. Secure a pulse oximeter to monitor the client's oxygen saturation
- C. Report the finding to the healthcare provider as soon as possible
- D. Continue to monitor the fingers until color returns to normal
Correct Answer: D
Rationale: Monitoring is appropriate as the symptoms are consistent with Raynaud's phenomenon and should resolve with warming.
Causes of a discrete osteolytic bone lesion in a two-year-old include:
- A. Rickets
- B. Non-accidental injury
- C. Eosinophilic granuloma
- D. Acute lymphoblastic leukaemia
Correct Answer: C
Rationale: Eosinophilic granuloma is a benign bone lesion that can present with osteolytic lesions, typically seen in children as part of Langerhans cell histiocytosis.
What are FOUR possible causes of left axis deviation in a newborn with features of Trisomy 21?
- A. AVSD
- B. Tricuspid atresia
- C. Pulmonary atresia with intact ventricular septum
- D. Mechanical shift
Correct Answer: A
Rationale: AVSD is a common congenital heart defect associated with Trisomy 21 and can lead to left axis deviation seen on ECG.
Common diseases presenting as a rash in infancy are:
- A. Measles
- B. Parvovirus B 19 infection
- C. Leukaemia
- D. Lymphoma
Correct Answer: A
Rationale: Measles