Which one of the following statement is true?

Correct Answer: D

Rationale: Rationale for Answer D: Cerebral blood flow is increased when PaCO2 is below 30mmHg --> below 50mmHg 1. Cerebral blood flow is primarily regulated by PaCO2 levels. 2. When PaCO2 is below 30-50mmHg, it causes cerebral vasoconstriction, reducing blood flow. 3. Higher PaCO2 levels above this range lead to cerebral vasodilation and increased blood flow. 4. Therefore, the statement that cerebral blood flow is increased when PaCO2 is below 30mmHg --> below 50mmHg is true. Summary: A: Incorrect - Hypertonic fluids, not hypotonic, are used to reduce brain edema in severe head injury. B: Incorrect - Elevated intracranial pressure can impair cerebral perfusion due to decreased pressure gradients. C: Incorrect - CSF can be displaced from the cranial vault in conditions like hydrocephalus or

Correct Answer: A

Rationale: The correct answer is A: The nursing assistant. Nursing assistants have the most direct contact with residents as they provide daily care, assist with activities of daily living, and offer emotional support. They spend more time with residents compared to nurses, physicians, or activities directors. Nurses mainly focus on clinical assessments and medication administration, physicians on medical diagnosis and treatment, and activities directors on planning recreational activities. Nursing assistants have continuous hands-on interaction with residents, making them the primary caregivers in long-term care settings.

Correct Answer: D

Rationale: The correct answer is D because sharing a resident's health information with other care team members is necessary for coordinated and effective care. Other team members need the information to provide appropriate treatment. Choice A is incorrect as sharing with anyone who asks violates resident privacy. Choice B is incorrect because not everyone in the facility needs access to health information. Choice C is incorrect as sharing with friends and family needs resident consent and may not always be appropriate for sensitive information.

Correct Answer: A

Rationale: The correct answer is A because it involves personal feelings or opinions that cannot be objectively measured. Mrs. Parker stating she is dizzy is subjective as it is based on her own perception. Choice B is incorrect because a temperature of 0°F is an objective measurement. Choice C is incorrect as it is a factual event that can be verified. Choice D is incorrect as it is an observable behavior. Subjective information is based on personal interpretations or opinions, making choice A the best example.

Correct Answer: B

Rationale: The correct answer is B: Provide a quiet environment. This is because a quiet environment can help reduce stimulation and confusion in a resident who is already confused. Loud noises or distractions can exacerbate confusion. Leaving the resident alone (choice A) can lead to feelings of abandonment. Avoiding communication (choice C) can worsen confusion. Speaking quickly (choice D) can overwhelm the resident further. Providing a quiet environment promotes a sense of calm and can aid in reorienting the confused resident.