Nokea
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.
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The nurse is monitoring an infant with a congenital heart disease closely for signs of heart failure. Which early sign should the nurse be most concerned about?
- A. Pallor
- B. Cough
- C. Tachycardia
- D. Slow and shallow breathing
Correct Answer: C
Rationale: Tachycardia is an early sign of heart failure in infants because the heart attempts to compensate for decreased cardiac output by increasing the heart rate.
The following drugs induce hepatic enzymes:
- A. Rifampicin
- B. Phenobarbitone
- C. Cimetidine
- D. Erythromycin
Correct Answer: A
Rationale: Rifampicin is known to induce hepatic enzymes, which can increase the metabolism of other drugs and reduce their efficacy.
A client with stage IV bone cancer is admitted to the hospital for pain control. The client verbalizes continuous, severe pain of 8 on a 1 to 10 scale. Which intervention should the nurse implement?
- A. Administer opioid and non-opioid medication simultaneously
- B. Administer only opioid medication as prescribed.
- C. Encourage the client to practice relaxation techniques
- D. Delay medication administration until reassessment.
Correct Answer: A
Rationale: Combining opioid and non-opioid medications provides more effective pain relief for severe cancer-related pain.
Regarding iron deficiency anemia, which of the following is true?
- A. Ferritin levels are elevated
- B. Red blood cell count is usually normal
- C. Hemoglobin is usually decreased
- D. Serum iron levels are elevated
Correct Answer: C
Rationale: In iron deficiency anemia, hemoglobin levels are usually decreased due to insufficient iron for red blood cell production.
Concerning Ebstein-Barr virus (infectious mononucleosis):
- A. Presence of petechiae between the hard and soft palate supports the diagnosis
- B. Typically a rash following administration of penicillin V occurs
- C. Guillain-Barre syndrome is a recognised sequel
- D. Hepatitis is common
Correct Answer: A
Rationale: Petechiae between the hard and soft palate are a classic sign of infectious mononucleosis. A rash following penicillin V is also common, and Guillain-Barre syndrome is a rare complication.