NCN1530 Adult Health Nursing Exam - North Palm College of Nursing

Explanation:

Correct Answer: (C) It is essential to take all prescribed medications for the entire duration of treatment.

TB treatment requires a prolonged course of multiple antibiotics, typically six to nine months. Incomplete treatment leads to treatment failure, relapse, and most critically, the development of multidrug-resistant TB (MDR-TB). Adherence to the full regimen is the single most important educational priority at discharge.

Why Other Options are Incorrect:

A. You can stop your medication when symptoms improve — This is dangerous and incorrect. Symptom resolution does not mean the bacteria have been fully eradicated. Stopping early is the leading cause of drug resistance in TB.

B. You should avoid close contact with others until you are cured — While infection control is important, this statement is overly broad. Patients on effective therapy for at least two to three weeks with improving sputum cultures are generally considered non-infectious and can resume normal social interactions with precautions.

D. Airborne precautions are only necessary in the hospital — This is incorrect. Patients discharged home should still take precautions such as ventilating rooms and covering their mouth and nose until they are confirmed non-infectious.

Explanation:

Correct Answers: (A) Use of accessory muscles during breathing, (C) Presence of wheezing, and (E) Clubbing of fingers.

Use of accessory muscles during breathing, including the sternocleidomastoid, scalene, and intercostal muscles, indicates increased work of breathing and respiratory distress. Normal, unlabored breathing relies on the diaphragm and does not require recruitment of accessory muscles. Their use signals that the patient is struggling to maintain adequate ventilation and oxygenation.

Wheezing is an abnormal high-pitched musical breath sound produced by airflow through narrowed or partially obstructed airways. It is associated with conditions such as asthma, chronic obstructive pulmonary disease, bronchospasm, and anaphylaxis, none of which are normal respiratory findings.

Clubbing of the fingers is a chronic abnormal finding characterized by enlargement and rounding of the fingertips and nail beds due to long-standing hypoxia and altered peripheral circulation. It is associated with chronic pulmonary conditions such as cystic fibrosis, bronchiectasis, and lung cancer, as well as cardiac and gastrointestinal disorders, and is never a normal assessment finding.

Why Other Options Are Incorrect:

B. Symmetrical chest expansion is a normal and expected finding during respiratory assessment, indicating that both lungs are expanding equally and adequately with each breath. Asymmetrical expansion would be the abnormal finding warranting further investigation.

D. An oxygen saturation of 98% on room air is within the normal range of 95 to 100% and indicates excellent oxygenation without supplemental oxygen. This is a reassuring and normal respiratory assessment finding.

Explanation:

Correct Answer: (B) 21%

Room air contains a fixed concentration of approximately 21% oxygen. This is a fundamental respiratory physiology fact. When supplemental oxygen is removed and a patient breathes ambient air, they are receiving 21% FiO2 regardless of their location or altitude at sea level. This baseline is the reference point for all supplemental oxygen therapy calculations.

Why Other Options are Incorrect:

A. 14% — A concentration of 14% oxygen is below normal atmospheric levels and would indicate an oxygen-depleted environment, not standard room air.

C. 28% — 28% oxygen corresponds to a low-flow supplemental oxygen delivery, such as approximately 2 liters per minute via nasal cannula. It is not the concentration found in room air.

D. 31% — 31% oxygen also represents a supplemental oxygen level, not the baseline atmospheric oxygen concentration.

Explanation:

Correct Answer: (B) Hypoxia

Hypoxia refers to deficient oxygen supply at the tissue and cellular level despite potentially adequate blood flow. It can result from hypoxemia, anemia, circulatory dysfunction, or impaired cellular oxygen utilization. The key distinguishing feature is that blood may be flowing normally, but the tissues are not receiving sufficient oxygen to meet metabolic demands.

Why Other Options are Incorrect:

A. Hypoxemia — Hypoxemia specifically refers to low oxygen levels in the arterial blood (low PaO2). It is a cause of hypoxia but is not the same condition. Hypoxemia refers to blood oxygen content, while hypoxia refers to tissue-level oxygen deficiency.

C. Ischemia — Ischemia refers to inadequate blood flow to tissues, which results in both oxygen and nutrient deprivation. The question specifies adequate blood flow, which rules out ischemia.

D. Anoxia — Anoxia refers to a complete absence of oxygen in the tissues, which is the extreme end of oxygen deprivation. The question describes inadequate supply, not total absence, making hypoxia the more precise and correct term.

Explanation:

Correct Answer: (D) Initiate oxygenation therapy to increase saturation to 88% to 92%.

The oxygen saturation of 76% is critically low and represents a life-threatening degree of hypoxemia. The immediate priority is to correct hypoxemia by initiating supplemental oxygen. In COPD patients, the target saturation is deliberately kept between 88% and 92% rather than higher normal ranges, because excessive oxygen can suppress the hypoxic drive that these patients rely on for respiratory stimulation. Correcting this dangerous saturation level is the most urgent first action.

Why Other Options are Incorrect:

A. Administer a short-acting beta2 agonist inhaler — Bronchodilator therapy is appropriate for managing bronchoconstriction in COPD, but it does not immediately address the critical hypoxemia present. Oxygen must be applied first.

B. Document the findings as normal for a client with COPD — While COPD patients do have chronically abnormal ABG values, an oxygen saturation of 76% is not within acceptable limits for any patient and must never be documented as normal. This response is unsafe.

C. Teach the client diaphragmatic breathing techniques — Patient education is valuable in COPD management but is entirely inappropriate as a first response to an acute, life-threatening drop in oxygen saturation. Teaching cannot be prioritized over immediate physiological intervention.

Explanation:

Correct Answer: (A) Observe non-verbal cues and behaviors.

When a patient is unable to verbally describe or quantify their pain, the most appropriate assessment approach is to observe non-verbal indicators of pain. These include facial grimacing, guarding, restlessness, moaning, changes in body posture, decreased activity, resistance to movement, and behavioral changes such as increased agitation or withdrawal. In older adults with cognitive impairment or communication difficulties, non-verbal pain assessment tools such as the PAINAD scale are specifically designed to capture these observable indicators and provide a reliable basis for pain management decisions.

Why Other Options Are Incorrect:

B. A numerical pain scale requires the patient to understand and assign a number to their pain experience, which is not feasible for a patient who is unable to describe their pain. This tool is appropriate for patients who can self-report but is not effective in this clinical situation.

C. Asking the patient to rate pain on a scale of 1 to 10 is a self-report method that requires verbal comprehension and the ability to translate a subjective experience into a numerical value. Since the patient has already demonstrated an inability to describe their pain, this approach would be ineffective and potentially frustrating for both the patient and the nurse.

D. Administering pain medication without first completing an adequate assessment is a clinical and safety concern. The nurse must assess the nature, location, and severity of the pain and rule out other causes of distress before intervening pharmacologically. Medicating without assessment does not meet the standard of care.

Explanation:

Correct Answers: (C) Initiating enteral nutrition as tolerated and (E) Using mechanical ventilation with low tidal volumes

In ARDS, the lungs are severely inflamed and fluid-filled, making oxygenation extremely difficult. Enteral nutrition is initiated early to maintain gut integrity and prevent catabolism. Mechanical ventilation with low tidal volumes (lung-protective ventilation, typically 6 mL/kg) is the cornerstone of ARDS management as it prevents ventilator-induced lung injury.

Why Other Options are Incorrect:

A. Administering diuretics to reduce pulmonary edema — While diuretics may seem logical, aggressive diuresis in ARDS can reduce cardiac output and worsen hemodynamics. Fluid management is conservative but not primarily diuretic-driven.

B. Positioning the patient in a high-Fowler's position — Prone positioning, not high-Fowler's, is the evidence-based intervention for ARDS to improve oxygenation by recruiting dependent lung zones.

D. Limiting fluid intake to prevent overload — While conservative fluid strategy is used, simply "limiting fluid intake" as a standalone intervention oversimplifies ARDS management and can compromise perfusion.

Explanation:

Correct Answer: (B) "I will arrange for the chaplain to visit you as soon as possible."

Spiritual care is a recognized and integral component of holistic, patient-centered nursing care. When a patient expresses a spiritual or religious need, the nurse's responsibility is to facilitate that care promptly and without judgment. Arranging a chaplain visit demonstrates respect for the patient's spiritual needs, supports their emotional and psychological wellbeing before surgery, and upholds the ethical principle of treating the whole person rather than just their physical condition.

Why Other Options Are Incorrect:

A. Telling the patient that the staff is too busy to accommodate their spiritual request dismisses a legitimate patient need, undermines therapeutic trust, and is ethically inconsistent with holistic nursing care principles. Busyness does not justify ignoring a patient's expressed spiritual needs.

C. Questioning why the patient needs to see the chaplain is intrusive and implies that the request requires justification. Patients do not need to explain or defend their spiritual or religious needs to healthcare providers, and this response could make the patient feel judged or dismissed.

D. Telling the patient to focus on medical care first implies that spiritual needs are secondary or unimportant, which is contrary to the holistic nursing philosophy. Spiritual wellbeing directly affects a patient's emotional state, anxiety levels, coping capacity, and surgical experience, making it a legitimate and timely clinical concern.

Explanation:

Correct Answer: (B) Provide a non-judgmental environment and assure confidentiality.

The most appropriate nursing action is to create a safe, inclusive, and non-judgmental environment where the patient feels respected and secure. Assuring the patient that their personal information, including sexual orientation, is confidential and will be handled with discretion directly addresses the expressed anxiety. This approach upholds the ethical principles of autonomy, dignity, and patient-centered care while building therapeutic trust, which is essential for honest and effective communication about health needs.

Why Other Options Are Incorrect:

A. Encouraging the patient to disclose their orientation pressures them to share personal information they are not comfortable sharing and violates their autonomy. Disclosure must always be voluntary and on the patient's own terms. The nurse's role is to provide a safe environment, not to push for disclosure.

C. Ignoring the patient's concerns dismisses a legitimate source of anxiety that can significantly impact the patient's willingness to engage with healthcare providers and disclose health-relevant information. Patient concerns are always clinically and ethically relevant and must never be dismissed.

D. Advising the patient to discuss their concerns with family is inappropriate and potentially harmful. The patient's family may not be aware of or accepting of their sexual orientation, and suggesting this course of action without knowing the patient's situation could place them at emotional or social risk.