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A client suspected of having colorectal cancer will require which diagnostic study to confirm the diagnosis?
- A. Stool hematest
- B. Abdominal computed tomography (CT)
- C. Carcinoembryonic antigen (CEA) scan
- D. Sigmoidoscopy
Correct Answer: D
Rationale: The correct answer is D: Sigmoidoscopy. This procedure allows direct visualization of the lower colon and rectum, enabling the detection of colorectal cancer. Stool hematest (A) detects blood in the stool but does not confirm cancer. Abdominal CT (B) can show abnormalities but is not specific for colorectal cancer. CEA scan (C) measures a tumor marker but is not definitive for diagnosis. Sigmoidoscopy (D) is the gold standard for diagnosing colorectal cancer as it allows for direct visualization and tissue biopsy.
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If a patient has elevated pulmonary vascular pressures, the nurse understands that the patient is most likely to develop which of the ff. physiological cardiac changes?
- A. Left atrial atrophy
- B. Left ventricular hypertrophy
- C. Right atrial atrophy
- D. Right ventricular hypertrophy
Correct Answer: D
Rationale: The correct answer is D: Right ventricular hypertrophy. Elevated pulmonary vascular pressures lead to increased resistance in the pulmonary circulation, causing the right ventricle to work harder to pump blood to the lungs. Over time, this can result in hypertrophy of the right ventricle as it adapts to the increased workload. Left atrial atrophy (A) and right atrial atrophy (C) are unlikely as the atria are not directly affected by elevated pulmonary pressures. Left ventricular hypertrophy (B) is not the correct choice as it typically occurs in response to systemic hypertension, not pulmonary hypertension.
Olympic gymnast Ms. Slovenski sufferd a great fall and suffered a great fall and fractured her femur. Approximately after 20 hours in the hospital she became dyspneic, tachypneic, and with scattered crackles in her lung fields. She is coughing up large amounts of thick, white sputum. The nurse correctly interprets this as:
- A. respiratory compromise related to inhalation of smoke
- B. pneumonia related to prolonged bedrest
- C. fat embolism syndrome related to femur fracture
- D. hypovolemic shock related to multiple trauma
Correct Answer: C
Rationale: The correct answer is C: fat embolism syndrome related to femur fracture. Fat embolism syndrome occurs when fat globules enter the bloodstream and travel to the lungs, causing respiratory distress. In this case, the patient's femur fracture likely led to fat embolism, explaining her dyspnea, tachypnea, crackles, and thick sputum. Choices A, B, and D do not align with the patient's presentation and history, making them incorrect. Choice A suggests smoke inhalation, which is not supported by the scenario. Choice B mentions pneumonia from bedrest, which is not a common complication of immobility. Choice D proposes hypovolemic shock from multiple trauma, which does not explain the respiratory symptoms and sputum production observed in the patient.
As the nurse collects data on a patient, which of the following is a symptom that may be found that the patient with anaphylaxis may be experiencing?
- A. Dermatitis
- B. Sinusitis
- C. Delirium
- D. Wheezing
Correct Answer: D
Rationale: The correct answer is D: Wheezing. Anaphylaxis is a severe allergic reaction that can lead to airway constriction and difficulty breathing, resulting in wheezing. Wheezing is a common symptom of anaphylaxis due to bronchospasm and airway swelling. Dermatitis (A) is a skin reaction, sinusitis (B) is inflammation of the sinuses, and delirium (C) is a state of mental confusion, which are not typical symptoms of anaphylaxis. Wheezing is a critical symptom in anaphylaxis as it indicates potential airway compromise and the need for immediate medical intervention.
A 19-year-old student develops symptoms of respiratory alkalosis related to an anxiety attack. Which nursing intervention is appropriate?
- A. Make sure his oxygen is being administered as ordered.
- B. Have him breathe into a paper bag.
- C. Place him in a semi-fowler’s position.
- D. Have him do coughing and deep breathing exercises.
Correct Answer: B
Rationale: The correct answer is B: Have him breathe into a paper bag. Breathing into a paper bag helps increase the carbon dioxide levels in the blood, which can help reverse respiratory alkalosis caused by hyperventilation during an anxiety attack. This intervention helps to normalize the blood pH and alleviate symptoms.
Incorrect choices:
A: Making sure oxygen is administered as ordered is not appropriate for respiratory alkalosis due to hyperventilation. Oxygen therapy can worsen the condition by further reducing carbon dioxide levels.
C: Placing the student in a semi-fowler's position does not directly address the primary issue of respiratory alkalosis and anxiety-induced hyperventilation.
D: Coughing and deep breathing exercises may exacerbate the hyperventilation and worsen the respiratory alkalosis rather than alleviate the symptoms.
When caring for a client with diabetes insipidus, the nurse expects to administer:
- A. Vasopressin (Pitressin Synthetic)
- B. Regular insulin
- C. Furosemide (Lasix)
- D. 10% dextrose
Correct Answer: A
Rationale: The correct answer is A: Vasopressin (Pitressin Synthetic). In diabetes insipidus, there is a deficiency of ADH (antidiuretic hormone), leading to excessive urination and thirst. Vasopressin is a synthetic form of ADH that helps retain water by reducing urine output. Administering vasopressin helps manage the symptoms of diabetes insipidus.
B: Regular insulin is used to manage diabetes mellitus, not diabetes insipidus.
C: Furosemide is a diuretic used to increase urine output, which would worsen the symptoms of diabetes insipidus.
D: 10% dextrose is a form of glucose and is not indicated in the treatment of diabetes insipidus.