Adult Health Nursing Study Guide Answers

Correct Answer: D

Rationale: Cor pulmonale is a condition characterized by right heart failure secondary to pulmonary hypertension, which is often caused by chronic hypoxemia. Chronic hypoxemia occurs in conditions such as chronic obstructive pulmonary disease (COPD) where there is limited airflow in and out of the lungs, leading to low oxygen levels in the blood. However, the specific characteristic of pulmonary hypertension leading to right heart failure distinguishes cor pulmonale from COPD. Other conditions like idiopathic pulmonary fibrosis (IPF) and pulmonary embolism (PE) may also lead to hypoxemia but are not primarily associated with pulmonary hypertension and right heart failure as in cor pulmonale.

Correct Answer: B

Rationale: Patient's uterine contractions lasting 70 seconds and occurring every 90 seconds signify hyperstimulation, which can be a serious complication associated with oxytocin administration. This may result in decreased uterine perfusion, fetal distress, and other adverse effects. The first action should be to discontinue the oxytocin infusion to prevent further complications and allow the uterus to relax. Observations and assessment should continue to monitor the patient's condition and response after discontinuing the infusion. Giving an emergency bolus of oxytocin or increasing the IV infusion rate would exacerbate the hyperstimulation, and turning the client to her left side and breathing deeply would not address the underlying issue of oxytocin-induced hyperstimulation.

Correct Answer: C

Rationale: Checking the humidifier's water regularly is the priority precautionary measure that should be done by the nurse during oxygen therapy. Maintaining adequate water in the humidifier ensures proper humidification of the oxygen delivered to the patient, helping prevent mucous membrane dryness and irritation. Dry mucous membranes can lead to discomfort, increased risk of infection, and potential damage to the respiratory system. Therefore, ensuring the humidifier's water level is appropriate is crucial for the safety and well-being of the patient receiving oxygen therapy. Limiting visitors, attaching "No Smoking" signage, and connecting the bait to the oxygen tank are important precautions as well, but checking the humidifier's water is the priority measure in this scenario.

Correct Answer: A

Rationale: After activating the emergency response system, the immediate priority in CPR is to begin chest compressions to support blood circulation. High-quality chest compressions are crucial in providing oxygen to vital organs, especially the brain, during cardiac arrest. Starting chest compressions promptly can improve the chances of survival for the person in need of CPR. Checking for breathing, performing abdominal thrusts, or assessing pulse should only be done after initiating chest compressions in the CPR sequence.

Correct Answer: C

Rationale: Autonomy is the ethical principle that upholds an individual's right to make decisions about their own medical treatment, free from coercion or undue influence. In this scenario, the 70-year-old patient has voluntarily decided not to have the pacemaker inserted despite the physician's recommendation. The fact that the decision is respected by the family further highlights the importance of autonomy in this situation. Respecting the patient's right to make choices regarding their own healthcare, even if it goes against medical advice, demonstrates a commitment to autonomy as an ethical principle.