The following drugs cause hypokalaemia:
- A. Commencement of digoxin for atrial fibrillation
- B. ACE (angiotensin converting enzyme) inhibitors
- C. Salbutamol for asthma
- D. Vitamin B1 for the treatment of pernicious anaemia
Correct Answer: C
Rationale: Salbutamol can cause hypokalaemia. Digoxin, ACE inhibitors, and vitamin B1 do not typically cause hypokalaemia.
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Xanthomas within palmar creases are seen characteristically in
- A. Pseudoxanthoma elasticum
- B. Type II hyperlipoproteinemia
- C. Type IIl hyperlipoproteinemia
- D. Hypothyroidism
Correct Answer: C
Rationale: Xanthomas within palmar creases are characteristic of Type III hyperlipoproteinemia.
A 4-year-old child presents to the clinic with a history of persistent dry cough and wheezing. What is the nurse’s primary concern?
- A. Allergic reaction
- B. Asthma exacerbation
- C. Respiratory infection
- D. Acute bronchiolitis
Correct Answer: B
Rationale: Wheezing and persistent dry cough are hallmark symptoms of asthma exacerbation, which is the nurse's primary concern.
A client with cancer is receiving chemotherapy with a known vesicant. The client's IV has been in place for 72 hours. The nurse determines that a new IV site cannot be obtained, and leaves the present IV in place. What is the greatest clinical risk related to this situation?
- A. Impaired skin integrity
- B. Fluid volume excess
- C. Acute pain and anxiety
- D. Peripheral neurovascular dysfunction
Correct Answer: A
Rationale: Vesicants can cause severe tissue damage if they extravasate, leading to impaired skin integrity.
Increased TSH is seen in a neonate with:
- A. Thyroxine insensitivity
- B. Iodine deficiency
- C. Hyperbilirubinaemia
- D. Thyroid agenesis
Correct Answer: B
Rationale: Iodine deficiency: Neonates with iodine deficiency often present with increased TSH levels as the body attempts to compensate for low thyroid hormone production.
What is the most likely congenital heart lesion in a newborn with Trisomy 21?
- A. AVSD
- B. Tetralogy of Fallot
- C. Ventricular septal defect
- D. Pulmonary stenosis
Correct Answer: A
Rationale: Atrioventricular septal defect (AVSD) is highly associated with Trisomy 21 and is the most likely congenital heart lesion in these infants.