Nokea
About juvenile chronic arthritis:
- A. Rheumatoid factor is an important diagnostic test to perform in suspected cases
- B. Pauciarticular type is the commonest type
- C. Cervical spine involvement is uncommon
- D. Methotrexate is the first line drug in therapy
Correct Answer: B
Rationale: Pauciarticular juvenile idiopathic arthritis (JIA) is the most common subtype, typically affecting fewer than five joints in the first six months of disease.
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Regarding ECG in infancy
- A. T Wave inversion present
- B. PR interval is < 0.16 s
- C. P wave is < 3mm tall
- D. QRS represent ventricular depolarization
Correct Answer: B
Rationale: In infants, the PR interval is shorter than in adults (< 0.16 seconds).
For the child with hypoplastic left heart syndrome, which medication may be given to keep the patent ductus arteriosus (PDA) open until surgery can be done?
- A. Prostaglandin E
- B. Indomethicin
- C. Ibuprofen
- D. Digoxin
Correct Answer: A
Rationale: Prostaglandin E is used to keep the PDA open in infants with hypoplastic left heart syndrome, allowing for adequate blood flow until surgical intervention can be performed.
The jugular venous pressure (JVP) has a predictable relationship with pulmonary artery wedge pressure (PAWP). A JVP of >12 mm Hg predicted PAWP >22 mm Hg by 88% in which of the following trials?
- A. BNP
- B. ESCAPE
- C. EVEREST
- D. EMPA REG
Correct Answer: B
Rationale: The ESCAPE trial studied the effectiveness of therapies in patients with advanced heart failure and showed that elevated JVP was correlated with high pulmonary artery wedge pressures.
Increased anion gap is seen in:
- A. Uraemia
- B. Starvation
- C. Renal tubular acidosis
- D. Acetazolamide therapy
Correct Answer: A
Rationale: Uraemia, a condition of high levels of urea in the blood, is associated with an increased anion gap due to the accumulation of acids.
A 16-year-old being treated for hypertension has laboratory values of: Hemoglobin: 16 g/dL Hematocrit: 43% Sodium: 139 mEq/L Potassium: 4.4 mEq/L Total cholesterol: 220 mg/dL Which drug does the nurse suspect the patient takes based on the total cholesterol?
- A. Beta blockers
- B. Calcium channel blockers
- C. ACE inhibitors
- D. Diuretics
Correct Answer: A
Rationale: Beta blockers are used with caution in patients with hyperlipidemia, hyperglycemia, and impotence.