Recurrent pneumonia is defined in children as having a frequency of episodes more than or equal to
- A. 2 episodes in 6 months
- B. 2 episodes in one year
- C. 3 episodes ever without radiographic clearance
- D. 4 episodes ever with radiographic clearance
Correct Answer: A
Rationale: Recurrent pneumonia in children is defined as having 2 or more episodes in 6 months, indicating a pattern of frequent infections.
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The following are true statements:
- A. Tissue plasminogen activator is derived from endothelium
- B. Heparin acts through antithrombin III
- C. Protein C deficiency is autosomal recessive transmitted
- D. Protein C is vitamin K dependent
Correct Answer: B
Rationale: Heparin acts through antithrombin III: Heparin enhances the activity of antithrombin III, which inhibits thrombin and other clotting factors, helping prevent clot formation.
Management of a patient with an INR of 8.7 from warfarin overdose includes:
- A. Vitamin K
- B. Cryoprecipitate
- C. Fresh frozen plasma
- D. Desmopressin
Correct Answer: A
Rationale: The correct answer is A because vitamin K is the primary treatment for reversing warfarin overdose. The other options (b-e) are less commonly used or not indicated for this situation.
Which is an important nursing consideration when suctioning a young child who has had heart surgery?
- A. Perform suctioning at least every hour.
- B. Suction for no longer than 30 seconds at a time.
- C. Administer supplemental oxygen before and after suctioning.
- D. Expect symptoms of respiratory distress when suctioning.
Correct Answer: C
Rationale: If suctioning is indicated, supplemental oxygen is administered with a manual resuscitation bag before and after the procedure to prevent hypoxia. Suctioning should be done only as indicated, not on a routine basis. The child should be suctioned for no more than 5 seconds at one time. Symptoms of respiratory distress are avoided by using appropriate technique.
The following drugs are contraindicated in renal failure:
- A. Nitrofurantoin
- B. Carbamazepine
- C. Salbutamol
- D. Metolazone
Correct Answer: A
Rationale: Nitrofurantoin is contraindicated in renal failure due to the risk of accumulation and subsequent toxicity, as the kidneys are unable to excrete the drug effectively.
Atypical hemolytic uremic syndrome is associated with
- A. Factor VII deficiency
- B. Factor H deficiency
- C. Interleukin 10 deficiency
- D. Properdin deficiency
Correct Answer: B
Rationale: Factor H deficiency is a known cause of atypical hemolytic uremic syndrome.