A nurse is caring for an older adult client who reports feeling cold most of the time.
The nurse knows that this is most likely due to which of the following physiological changes with aging?
Decreased metabolic rate
Increased blood pressure
Increased sweat gland activity.
Decreased body fat.
The Correct Answer is A
The correct answer is A.
Decreased metabolic rate. This is because the metabolic rate is the amount of energy that the body uses to maintain its functions, and it tends to decline with age due to various factors, such as loss of muscle mass, reduced activity, hormonal changes, and decreased thyroid function.
A lower metabolic rate means that the body produces less heat and therefore feels colder more easily.
Choice B is wrong because increased blood pressure is not a normal physiological change with aging, but rather a risk factor for cardiovascular diseases that can be influenced by lifestyle, genetics, and other factors.
Choice C is wrong because increased sweat gland activity is not a normal physiological change with aging, but rather a sign of hyperhidrosis, which is a condition that causes excessive sweating due to overactive sweat glands. Sweat glands actually decrease in number and function with age, which can impair thermoregulation and increase the risk of heat-related illnesses.
Choice D is wrong because decreased body fat is not a normal physiological change with aging, but rather a result of malnutrition, illness, or other causes. Body fat actually tends to increase with age, especially in the abdominal region, due to hormonal changes, reduced physical activity, and lower metabolic rate.
Body fat can act as an insulator and help maintain body temperature.
Normal ranges for metabolic rate vary depending on age, sex, body size, activity level, and other factors.
A general estimate for resting metabolic rate (RMR) is 10 calories per kilogram of body weight per day for men and 9 calories per kilogram of body weight per day for women.
However, this may not reflect the actual metabolic rate of an individual, as it does not account for the effects of food intake, exercise, or environmental factors.
Therefore, it is better to measure metabolic rate using indirect calorimetry or other methods that can capture these variables.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C"]
Explanation
The correct answer is A, B and C.
These are the factors that increase the risk of respiratory infections in elderly patients:.
• Decreased immune response: Elderly patients have a weaker immune system that makes them more susceptible to viral and bacterial infections.They also have a poor response to respiratory vaccines.
• Decreased chest wall compliance: Elderly patients have reduced elasticity of the lungs and chest wall, which makes it harder for them to breathe and expel mucus.
• Decreased alveolar surface area: Elderly patients have fewer and larger alveoli, which reduces the gas exchange area and oxygen diffusion capacity.
Choice D is wrong because decreased oxygen saturation is not a risk factor, but a consequence of respiratory infections.
Choice E is wrong because decreased bronchial dilation is not a specific factor for elderly patients, but a common feature of obstructive lung diseases.
Normal ranges for oxygen saturation are 95-100% and for bronchial dilation are variable depending on the type and severity of the disease.
Correct Answer is ["A","D","E"]
Explanation
The correct answer isA, D, and E.
Here is why:.
A. Elevated white blood cell count.
This is a sign of infection and inflammation in the body, which can be caused by a UTI.An elevated white blood cell count can also indicate a complication of UTI such as pyelonephritis (kidney infection) or sepsis (blood infection).
D. Altered mental status.
This is a common symptom of UTI in older adults, especially those with dementia or other cognitive impairments.UTIs can cause confusion, agitation, delirium, or behavioral changes in the elderly due to the effects of infection and inflammation on the brain.
E. Positive urine culture.
This is the definitive test to diagnose a UTI, as it identifies the type and number of bacteria present in the urine.A positive urine culture confirms the presence of a UTI and guides the appropriate antimicrobial treatment.
The other choices are wrong because:.
•.
B. Decreased serum creatinine level.
This is not a sign of UTI or its complications.
Serum creatinine is a measure of kidney function, and it usually increases when the kidneys are damaged or impaired.A decreased serum creatinine level may indicate other conditions such as liver disease, muscle wasting, or malnutrition.
•.
C. Increased urine specific gravity.
This is not a sign of UTI or its complications.
Urine specific gravity is a measure of urine concentration, and it usually increases when the body is dehydrated or has high levels of solutes in the urine.An increased urine specific gravity may indicate other conditions such as diabetes mellitus, heart failure, or dehydration.
Normal ranges for some of these tests are:.
• White blood cell count: 4,000 to 11,000 cells per microliter (mcL) of blood.
• Serum creatinine: 0.6 to 1.2 milligrams per deciliter (mg/dL) for men and 0.5 to 1.1 mg/dL for women.
• Urine specific gravity: 1.005 to 1.030.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.