The nurse is caring for a client whose arterial blood gas reveals partially compensated respiratory alkalosis. Which results are consistent with this finding?

Table 9.9 Normal Arterial Blood Gas Values

ABG Value.                                                             Normal Value

pH                                                                             7.35-7.45

PaCO2                                                                                                            35-45 mmHg

HCO3-                                                                         22-26mEq/L

Base excess                                                               -2 to +2

PaO2                                                                            80-95 mmHg

SaO2                                                                            >95%

pH 7.32, Pa02 88 mmHg, PaCO2 50 mmHg, HCO3 29 mEq/L, 02 sat 94%

pH 7.35, Pa02 98 mmHg, PaCO2 55 mmHg, HCO3 28 mEq/L, 02 sat 99%

pH 7.64, PaO2 94 mmHg, PaCO2 23 mmHg, HCO3 14 mEq/L, 02 sat 88%

PH 7.50, Pa02 91 mmHg, PaCO2 52 mmHg, HCO3 30 mEq/L, 02 sat 96%

Answer and Explanation

The Correct Answer is C

A) pH 7.32, PaO2 88 mmHg, PaCO2 50 mmHg, HCO3 29 mEq/L, O2 sat 94%
This result suggests respiratory acidosis rather than respiratory alkalosis. In respiratory acidosis, the pH would be low (acidotic), PaCO2 would be elevated (since it reflects CO2 retention), and HCO3 would typically be elevated as a compensatory mechanism. This set of ABG values does not align with respiratory alkalosis, so it is not consistent with partially compensated respiratory alkalosis.

B) pH 7.35, PaO2 98 mmHg, PaCO2 55 mmHg, HCO3 28 mEq/L, O2 sat 99%
This set of values suggests respiratory acidosis, as indicated by a low pH (acidosis) and high PaCO2 (carbon dioxide retention). The HCO3 value is slightly elevated in compensation for respiratory acidosis, but this is not an example of partially compensated respiratory alkalosis, so it doesn't match the question's requirement.

C) pH 7.64, PaO2 94 mmHg, PaCO2 23 mmHg, HCO3 14 mEq/L, O2 sat 88%
This result is consistent with partially compensated respiratory alkalosis. In respiratory alkalosis, the pH would be elevated (alkalotic), PaCO2 would be low (indicating hyperventilation), and the kidneys would attempt to compensate by lowering bicarbonate (HCO3). In this case, the low PaCO2 (23 mmHg) and the low HCO3 (14 mEq/L) demonstrate partial compensation. The pH is also elevated at 7.64, which aligns with alkalosis. This is the correct answer for partially compensated respiratory alkalosis.

D) pH 7.50, PaO2 91 mmHg, PaCO2 52 mmHg, HCO3 30 mEq/L, O2 sat 96%
This result suggests respiratory acidosis with compensation. The elevated PaCO2 (52 mmHg) indicates CO2 retention, leading to acidosis, while the slightly elevated HCO3 (30 mEq/L) shows that the kidneys are compensating for the respiratory acidosis. The pH of 7.50 is slightly alkalotic, but it is more consistent with compensation for respiratory acidosis rather than respiratory alkalosis. Thus, this set of ABG values does not match the description of partially compensated respiratory alkalosis.

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Correct Answer is C

Explanation

A) Arrange for social service consult for assistance with medication purchase:
While arranging for social service support can be beneficial in ensuring the client has access to necessary medications, this is not directly related to fall prevention at home. Falls in Parkinson's disease are more closely associated with mobility, balance, and environmental factors, which should be the focus of interventions aimed at reducing fall risk. Medication access is important but secondary to safety measures related to physical environment and mobility.

B) Have the client seen by a nursing assistant 3 times a week for hygiene:
While assistance with hygiene can certainly help support the client’s daily needs, the frequency of visits for hygiene care alone does not specifically address fall prevention. Falls are more directly linked to issues such as impaired balance, freezing episodes, and poor mobility—issues that should be addressed through environmental modifications and specific interventions aimed at improving safety during ambulation and transfers.

C) Ensure adequate lighting in areas where the client will ambulate:
Ensuring adequate lighting in areas where the client will ambulate is a critical intervention for fall prevention in individuals with Parkinson's disease. Parkinson's disease often causes balance and coordination problems, and inadequate lighting can increase the risk of tripping or falling, especially at night or in poorly lit areas. Proper lighting helps the client see obstacles and navigate their environment safely. This intervention directly addresses a key factor in fall risk and is an important part of the plan of care.

D) Refer the client to a nutritionist to address dietary measures:
Referral to a nutritionist can be helpful in managing some aspects of Parkinson's disease, particularly for addressing issues like constipation, weight management, or dysphagia. However, dietary measures do not have a direct impact on fall prevention. Fall prevention should focus more on mobility, strength, environmental safety, and managing the symptoms of Parkinson's disease that affect balance and movement.

A. This is a safe medication that is associated with minimal side effects B. Stop the medication if there is increased urination C. Change position slowly to prevent orthostatic hypotension D. Double the dose if a dose is missed at the next scheduled time

Correct Answer is C

Explanation

A. This is a safe medication that is associated with minimal side effects: Carbidopa/levodopa is an effective medication for managing the symptoms of Parkinson's disease, but it is not without side effects. Common side effects include nausea, dizziness, dyskinesia (involuntary movements), and orthostatic hypotension. It is important to be honest with clients about the potential side effects and manage them proactively, rather than describing the medication as "safe with minimal side effects," which could lead to underestimating the risks.

B. Stop the medication if there is increased urination: Increased urination is not a common or typical side effect of carbidopa/levodopa. In fact, the medication is more likely to cause urinary retention or difficulty urinating in some cases. The client should not stop taking the medication without consulting their healthcare provider. Any urinary changes should be reported, but abrupt discontinuation of the medication is not advised without medical supervision.

C. Change position slowly to prevent orthostatic hypotension: One of the common side effects of carbidopa/levodopa therapy is orthostatic hypotension, which occurs when a person experiences a drop in blood pressure upon standing up. This can lead to dizziness or fainting, increasing the risk of falls. The client should be educated to change positions slowly, such as sitting up slowly and standing up gradually from a lying position, to minimize the risk of orthostatic hypotension. This is a critical aspect of safety and should be emphasized as part of the teaching.

D. Double the dose if a dose is missed at the next scheduled time: Doubling the dose of carbidopa/levodopa if a dose is missed can lead to an overdose, which may cause serious side effects, including dyskinesias or other complications. Clients should be instructed to take the missed dose as soon as they remember, unless it is almost time for the next dose. In that case, they should skip the missed dose and continue with their regular dosing schedule. It is important to never double the dose without guidance from the healthcare provider.

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To achieve the outcome of fall prevention at home in the client diagnosed with Parkinson's Disease (PD), which intervention would the nurse include in the plan of care?

Correct Answer is C

Explanation

A nurse is providing teaching to a client newly diagnosed with Parkinson's disease who is prescribed carbidopa/levodopa. What should be included in client teaching?

Correct Answer is C

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