Nursing Elites

1. Which hormone is secreted by the Islets of Langerhans?

• A. Progesterone
• B. Testosterone
• C. Insulin
• D. Hemoglobin

Correct answer: C

Rationale: Insulin is the correct answer. It is the hormone secreted by the Islets of Langerhans in the pancreas. These specialized cells regulate blood sugar levels by releasing insulin in response to high blood glucose levels. Insulin aids in glucose absorption by cells, lowering blood sugar levels. Progesterone, testosterone, and hemoglobin are not secreted by the Islets of Langerhans and do not play a role in blood sugar regulation.

2. A client is to receive thrombolytic therapy. Which of the following factors should be recognized as a contraindication to the therapy?

• A. Hip arthroplasty 2 weeks ago
• B. Elevated sedimentation rate
• C. Incident of exercise-induced asthma 1 week ago
• D. Elevated platelet count

Correct answer: A

Rationale: Thrombolytic therapy involves the use of medications to dissolve blood clots. Hip arthroplasty (joint replacement surgery) performed recently is a contraindication to thrombolytic therapy due to the risk of bleeding. Elevated sedimentation rate, exercise-induced asthma, and elevated platelet count are not contraindications to thrombolytic therapy.

3. Which technique in physical examination is used to assess the movement of air through the tracheobronchial tree?

• A. Palpation
• B. Auscultation
• C. Inspection
• D. Percussion

Correct answer: B

Rationale: The correct answer is B: Auscultation. Auscultation is a technique in physical examination used to assess the movement of air through the tracheobronchial tree. During auscultation, healthcare providers listen to lung sounds using a stethoscope to detect abnormalities such as wheezing, crackles, or diminished breath sounds, which can indicate conditions affecting the airways or lungs. Palpation (Choice A) involves feeling the body for abnormalities, Inspection (Choice C) involves visual examination, and Percussion (Choice D) involves tapping on the body to produce sounds that can help in assessing underlying structures, but they are not directly used to assess air movement through the tracheobronchial tree.

4. A healthcare professional is assessing a client who has a pulmonary embolism. Which of the following information should the healthcare professional not expect to find?

• A. Bradypnea
• B. Pleural friction rub
• C. Petechiae
• D. Tachycardia

Correct answer: A

Rationale: In a client with a pulmonary embolism, bradypnea, which is abnormally slow breathing, is not an expected finding. Pulmonary embolism typically presents with tachypnea (rapid breathing) due to the body's compensatory mechanism to increase oxygen levels. Pleural friction rub, petechiae, and tachycardia are commonly associated with a pulmonary embolism due to the impaired oxygenation and increased workload on the heart. Therefore, the healthcare professional should not expect to find bradypnea during the assessment of a client with a pulmonary embolism.

5. How can preserving skin integrity impact the circular chain of infection?

• A. Host
• B. Reservoir
• C. Mode of transmission
• D. Portal of entry

Correct answer: D

Rationale: Preserving skin integrity plays a key role in breaking the chain of infection by eliminating the portal of entry for pathogens. When the skin is intact, it acts as a natural barrier that prevents pathogens from entering the body. By maintaining skin integrity through proper hygiene and wound care, the risk of infection is significantly reduced, disrupting the cycle of infection transmission.

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