Foundations of Nursing (PNR 106)

The correct answer is:A) Decreased lung elasticity

Explanation:

As individuals age, they experience several physiological changes that affect their respiratory system. One of the most significant changes is decreased lung elasticity, which results in reduced lung capacity and less efficient gas exchange. This makes it more difficult for the lungs to expand and contract fully, increasing the risk of respiratory infections. Additionally, the reduced ability to clear mucus from the airways can lead to bacterial or viral growth, further raising the risk for infections such as pneumonia or bronchitis.

Why the other options are incorrect:

Option B (Increased saliva production) is incorrect because decreased saliva production is more common in older adults, which may contribute to difficulty swallowing and dry mouth, but it does not directly impact the risk of respiratory infections.

Option C (Increased number of cilia in the airways) is incorrect because with aging, the number of cilia (small hair-like structures in the respiratory tract) tends to decrease, impairing the body’s ability to clear mucus and pathogens from the airways, increasing the risk of respiratory infections.

Option D (Increased production of gastric acid) is incorrect because older adults typically experience decreased gastric acid production, which can affect digestion but does not directly increase the risk for respiratory infections.

Summary:

Decreased lung elasticity in older adults is a major physiological change that puts them at risk for respiratory infections. It leads to reduced lung capacity and less effective clearance of pathogens, increasing the likelihood of infections such as pneumonia.

The correct answer is A: Opioids

Explanation:

Opioids and general analgesics (such as acetaminophen and NSAIDs) are often ineffective for controlling neuropathic pain, which is caused by nerve damage. These pain types typically do not respond well to opioids because the pain is not due to tissue injury, but rather from nerve dysfunction.

Why the Other Options Are Incorrect:

B. Analgesics:

While opioids and basic analgesics like NSAIDs are generally ineffective, certain medications like acetaminophen or NSAIDs may offer some relief for mild cases, but they are still less effective for neuropathic pain. However, specific analgesic agents like topical lidocaine or certain antidepressants can be useful.

C. Antidepressants:

Certain antidepressants, particularly tricyclic antidepressants (e.g., amitriptyline) and SNRIs (e.g., duloxetine), have been shown to help manage neuropathic pain by modifying neurotransmitter levels that affect pain perception.

D. Anticonvulsants:

Anticonvulsants, such as gabapentin or pregabalin, are commonly used to treat neuropathic pain. These medications help modulate nerve signals and are considered effective for controlling pain in conditions like diabetic neuropathy or postherpetic neuralgia.

Summary:

Opioids and general analgesics are not typically effective for controlling neuropathic pain. Medications like antidepressants and anticonvulsants are more effective for this type of pain, as they target the underlying nerve dysfunction.

The correct answers are:

A. Decreased elasticity

C. Airway cilia experience impairment

D. Loss of elastic recoil during expiration

E. Tissue changes thicken the alveolar membrane

F. Less respiratory reserve

Explanation:

As people age, several physiological changes occur in the respiratory system that can affect breathing efficiency and gas exchange.

A. Decreased elasticity: Aging leads to a reduction in the elasticity of the lungs and chest wall, making it more difficult for the lungs to expand and contract fully. This affects the efficiency of ventilation and oxygen exchange.

C. Airway cilia experience impairment: The cilia in the airways become less effective as people age. These cilia are responsible for clearing mucus and debris from the respiratory system, and their impairment can lead to increased susceptibility to respiratory infections.

D. Loss of elastic recoil during expiration: Elastic recoil refers to the lungs' ability to return to their resting position after inhalation. As people age, the lungs lose some of their ability to recoil during expiration, making it harder to expel air fully from the lungs.

E. Tissue changes thicken the alveolar membrane: The alveolar membrane, where gas exchange occurs, can thicken with age. This thickening reduces the efficiency of oxygen and carbon dioxide exchange between the alveoli and capillaries.

F. Less respiratory reserve: As the lungs lose some of their ability to expand fully and the elastic recoil decreases, the respiratory system’s capacity to handle increased demands (such as during exercise or illness) is reduced, resulting in less respiratory reserve.

Why the Other Option Is Incorrect:

B. Total body water reduces by 50%:

While total body water does decrease with age, this change is related more to general aging and not specifically to the respiratory system. Therefore, this option does not directly pertain to respiratory changes in older adults.

Summary:

As a person ages, the respiratory system undergoes several changes, including decreased elasticity, impaired airway cilia function, loss of elastic recoil, thickening of the alveolar membrane, and a reduction in respiratory reserve. These changes can impact the efficiency of ventilation and gas exchange, making older adults more susceptible to respiratory issues and infections.

The correct answer is B: Document the finding as normal because the suction is active

Explanation:

In a chest tube drainage system, continuous bubbling in the suction control chamber is an expected finding when suction is applied. The bubbling occurs because the suction regulator is actively removing air or fluid from the pleural space, preventing lung collapse. This is a normal function of the system and does not require intervention. The amount of bubbling depends on the level of suction set by the water column (typically -20 cm H₂O).

Why the Other Options Are Incorrect:

A. Clamp the chest tube immediately and notify the physician:

Clamping a chest tube unnecessarily can cause a tension pneumothorax, leading to increased intrathoracic pressure and life-threatening respiratory distress. Chest tubes should only be clamped in specific situations, such as during tube changes or when checking for air leaks, and under physician guidance.

C. Check for air leaks in the system and reinforce the dressing:

While air leaks can cause bubbling, leaks are typically identified in the water seal chamber, not the suction control chamber. If bubbling were in the water seal chamber (especially intermittent or excessive bubbling), further assessment for an air leak would be necessary. Since the bubbling is in the suction chamber, it is expected and does not indicate a system malfunction.

D. Disconnect the suction to stop the bubbling:

Disconnecting the suction arbitrarily could alter the desired negative pressure in the pleural space, potentially leading to lung re-collapse. The suction should only be adjusted or discontinued per physician orders, typically when the patient shows clinical improvement and a chest X-ray confirms lung re-expansion.

Summary:

Continuous bubbling in the suction control chamber is a normal finding when suction is applied to a chest tube drainage system. It indicates that the system is functioning correctly in removing air or fluid from the pleural space. Bubbling in the water seal chamber may suggest an air leak, requiring further assessment. The nurse should not clamp the tube, reinforce the dressing unnecessarily, or disconnect the suction unless clinically indicated. Instead, the nurse should document the normal finding and continue monitoring the patient’s respiratory status.

The correct answers are:

A. Restricted calorie intake

B. Moderate to vigorous physical activity

D. Preoccupation with weight and body image

E. Fear of gaining weight

Explanation:

Anorexia nervosa is an eating disorder characterized by an extreme fear of gaining weight and a distorted body image, which often leads to restrictive eating behaviors and excessive exercise.

A. Restricted calorie intake:

This is correct. Individuals with anorexia nervosa severely restrict their calorie intake to prevent weight gain. This is a hallmark symptom of the disorder.

B. Moderate to vigorous physical activity:

This is correct. People with anorexia nervosa often engage in excessive physical activity, sometimes to the point of overexercising, in an attempt to burn calories and prevent weight gain.

.D. Preoccupation with weight and body image:

This is correct. Individuals with anorexia nervosa are often obsessively concerned with their weight, body shape, and appearance, leading to distorted perceptions of their body.

E. Fear of gaining weight:

This is correct. A core symptom of anorexia nervosa is an intense fear of gaining weight, even when the person is underweight. This fear drives the restrictive eating patterns and excessive exercise.

Why the Other Options Are Incorrect

C. Excessive appetite and overeating:

This is incorrect. Anorexia nervosa is associated with a lack of appetite and restrictive eating behaviors, not overeating. Those with the disorder typically avoid food and do not consume excessive amounts of food

F. Increased social engagement:

This is incorrect. People with anorexia nervosa often withdraw from social situations, particularly those that involve food. They may avoid eating with others or hide their disordered behaviors from friends and family.

Summary:

In patients with anorexia nervosa, you will commonly observe restricted calorie intake, excessive physical activity, preoccupation with weight and body image, and a fear of gaining weight. These behaviors are linked to the psychological and physical aspects of the disorder, which can lead to significant health complications.

The correct answer is A Provides instruments and supplies to the operating team

Explanation:

The surgical scrub nurse is responsible for ensuring that all instruments and supplies are sterile and ready for use during the procedure. They assist the surgical team by providing the appropriate instruments, ensuring the sterile field is maintained, and anticipating the needs of the surgeon and team. Their role is critical to the smooth operation of the procedure.

Why the Other Options Are Incorrect

B. Performs the surgical incision:

This is incorrect because the surgeon is the one who performs the surgical incision, not the scrub nurse.

C. Administers anesthesia to the patient:

This is incorrect because the anesthesia provider, not the scrub nurse, is responsible for administering anesthesia and managing the patient’s sedation during the surgery.

D. Monitors the patient's vital signs during the surgery:

This is incorrect because the circulating nurse typically monitors the patient’s vital signs during surgery. The scrub nurse focuses on the sterile field and instrument handling.

Summary:

The primary responsibility of the surgical scrub nurse is to provide sterile instruments and supplies to the operating team, ensuring the surgical procedure runs smoothly and that the sterile field is maintained throughout the surgery.

The correct answers are:

C. Crackles in the lungs

D. Possible edema

E. Slow, bounding pulse

Explanation:

Dehydration typically leads to a decrease in total body fluid, and the following signs can indicate this condition:

C. Crackles in the lungs:

Crackles in the lungs may occur in cases of dehydration that lead to compensatory fluid retention. As the body tries to maintain fluid balance, fluid can accumulate in the lungs, leading to crackles or rales during lung auscultation.

D. Possible edema:

Though edema is often associated with fluid overload, it can also occur in dehydration due to the body’s attempt to retain sodium and water, especially in the lower extremities. This is often seen when dehydration leads to altered fluid shifts.

E. Slow, bounding pulse:

A slow, bounding pulse can occur in dehydration as a compensatory mechanism. As the body tries to maintain cardiac output with low blood volume, the pulse may become stronger and more forceful, but slower.

Why the Other Options Are Incorrect:

A. Weight gain:

Weight gain is not typically a sign of dehydration. In fact, dehydration often causes weight loss due to fluid loss. If the body retains water (which can occur in severe dehydration), edema might develop, but weight gain is not a primary indicator of dehydration.

B. Elevated blood pressure:

Dehydration often leads to low blood pressure (hypotension), not high blood pressure. The reduced blood volume caused by dehydration leads to a decrease in blood pressure, and in some cases, the body compensates with an increased heart rate.

Summary:

Signs of dehydration include crackles in the lungs, possible edema, and a slow, bounding pulse. These reflect the body’s compensatory mechanisms as it tries to maintain fluid balance. Weight gain and elevated blood pressure are typically not associated with dehydration.

The correct answer is A: Dairy, eggs, and plant foods

Explanation:

A lacto-ovo-vegetarian is someone who excludes meat and poultry but includes dairy products, eggs, and plant-based foods in their diet. This type of vegetarian diet allows for a variety of nutrient-rich foods, including dairy (such as milk, cheese, and yogurt), eggs, and all types of plant-based foods (fruits, vegetables, grains, legumes, etc.).

Why the Other Options Are Incorrect:

A. Dairy, eggs, and plant foods:

This is the correct answer. Lacto-ovo-vegetarians consume dairy, eggs, and plant-based foods but do not eat meat or fish.

B. Dairy and fish:

This is incorrect. Lacto-ovo-vegetarians do not eat fish or any type of meat, so this option is not correct for this dietary preference.

C. Eggs and plant foods only:

This is incorrect. While lacto-ovo-vegetarians do eat eggs and plant foods, they also consume dairy products, which is not mentioned in this option.

D. Plant foods only:

This is incorrect. A plant-based diet without dairy or eggs would describe a vegan diet, not a lacto-ovo-vegetarian diet.

Summary:

Lacto-ovo-vegetarians eat dairy, eggs, and plant foods while avoiding meat and fish. This dietary pattern allows for a variety of nutrient sources, including proteins and vitamins from eggs, dairy, and plant-based foods.

The correct answer is D: Enculturation

Explanation:

Enculturation is the process by which individuals learn and adopt the norms, values, customs, and behaviors of their own culture or social group. It typically happens from a young age as individuals are socialized into the cultural practices of their family, community, and society.

Why the Other Options Are Incorrect:

A. Cultural Sensitivity:

Cultural sensitivity involves understanding, respecting, and being aware of the differences between cultures. It is not the process of transferring cultural beliefs from a group to an individual.

B. Cultural Blindness:

Cultural blindness refers to the inability or unwillingness to recognize and respect cultural differences. It can lead to the application of one’s own cultural standards without consideration of other cultures, which is the opposite of understanding cultural norms.

C. Culture:

Culture refers to the collective beliefs, values, customs, and behaviors shared by a group of people. While culture influences enculturation, it is not the process itself.

Summary:

The term enculturation best describes the process through which individuals adopt the cultural beliefs and norms of their group, making it the correct answer.