Nokea
The school nurse is presenting a class on smoking cessation at the local high school. A participant in the class asks the nurse about the risk of lung cancer in those who smoke. What response related to risk for lung cancer in smokers is most accurate?
- A. The younger you are when you start smoking, the higher your risk of lung cancer
- B. The risk for lung cancer never decreases once you have smoked, which is why smokers need annual chest x-rays
- C. The risk for lung cancer is determined mostly by what type of cigarettes you smoke
- D. The risk for lung cancer depends primarily on the other risk factors for cancer that you have
Correct Answer: A
Rationale: Risk is determined by the pack-year history (number of packs of cigarettes used each day, multiplied by the number of years smoked), the age of initiation of smoking, the depth of inhalation, and the tar and nicotine levels in the cigarettes smoked. The younger a person is when he or she starts smoking, the greater the risk of developing lung cancer. Risk declines after smoking cessation. The type of cigarettes is a significant variable, but this is not the most important factor.
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The nurse is caring for a patient who is receiving oxygen therapy for pneumonia. How should the nurse best assess whether the patient is hypoxemic?
- A. Assess the patients level of consciousness (LOC)
- B. Assess the patients extremities for signs of cyanosis
- C. Assess the patients oxygen saturation level
- D. Review the patients hemoglobin, hematocrit, and red blood cell levels
Correct Answer: C
Rationale: The effectiveness of the patients oxygen therapy is assessed by the ABG analysis or pulse oximetry. ABG results may not be readily available. Presence or absence of cyanosis is not an accurate indicator of oxygen effectiveness. The patients LOC may be affected by hypoxia, but not every change in LOC is related to oxygenation. Hemoglobin, hematocrit, and red blood cell levels do not directly reflect current oxygenation status.
The nurse is caring for a patient in the ICU admitted with ARDS after exposure to toxic fumes from a hazardous spill at work. The patient has become hypotensive. What is the cause of this complication to the ARDS treatment?
- A. Pulmonary hypotension due to decreased cardiac output
- B. Severe and progressive pulmonary hypertension
- C. Hypovolemia secondary to leakage of fluid into the interstitial spaces
- D. Increased cardiac output from high levels of PEEP therapy
Correct Answer: C
Rationale: Systemic hypotension may occur in ARDS as a result of hypovolemia secondary to leakage of fluid into the interstitial spaces and depressed cardiac output from high levels of PEEP therapy. Pulmonary hypertension, not pulmonary hypotension, sometimes is a complication of ARDS, but it is not the cause of the patient becoming hypotensive.
The public health nurse is administering Mantoux tests to children who are being registered for kindergarten in the community. How should the nurse administer this test?
- A. Administer intradermal injections into the childrens inner forearms
- B. Administer intramuscular injections into each childs vastus lateralis
- C. Administer a subcutaneous injection into each childs umbilical area
- D. Administer a subcutaneous injection at a 45-degree angle into each childs deltoid
Correct Answer: A
Rationale: The purified protein derivative (PPD) is always injected into the intradermal layer of the inner aspect of the forearm. The subcutaneous and intramuscular routes are not utilized.
The nurse is providing discharge teaching for a patient who developed a pulmonary embolism after total knee surgery. The patient has been converted from heparin to sodium warfarin (Coumadin) anticoagulant therapy. What should the nurse teach the client?
- A. Coumadin will continue to break up the clot over a period of weeks
- B. Coumadin must be taken concurrent with ASA to achieve anticoagulation
- C. Anticoagulant therapy usually lasts between 3 and 6 months
- D. He should take a vitamin supplement containing vitamin K
Correct Answer: C
Rationale: Anticoagulant therapy prevents further clot formation, but cannot be used to dissolve a clot. The therapy continues for approximately 3 to 6 months and is not combined with ASA. Vitamin K reverses the effect of anticoagulant therapy and normally should not be taken.
The nurse is caring for an 82-year-old patient with a diagnosis of tracheobronchitis. The patient begins complaining of right-sided chest pain that gets worse when he coughs or breathes deeply. Vital signs are within normal limits. What would you suspect this patient is experiencing?
- A. Traumatic pneumothorax
- B. Empyema
- C. Pleuritic pain
- D. Myocardial infarction
Correct Answer: C
Rationale: The key characteristic of pleuritic pain is its relationship to respiratory movement. Taking a deep breath, coughing, or sneezing worsens the pain. Pleuritic pain is limited in distribution rather than diffuse; it usually occurs only on one side. The pain may become minimal or absent when the breath is held. It may be localized or radiate to the shoulder or abdomen. Later, as pleural fluid develops, the pain decreases. The scenario does not indicate any trauma to the patient, so a traumatic pneumothorax is implausible. Empyema is unlikely as there is no fever indicative of infection. Myocardial infarction would affect the patients vital signs profoundly.