A 72-year-old chemist has left lower lobe pneumonia. His nurse checks his oxygen saturation and the result is 86%. Which of the ff. actions by the nurse is best?

Correct Answer: A

Rationale: An oxygen saturation (SaO2) level of 86% is significantly below the normal range of 95-100%. This indicates hypoxemia, which means the body is not getting enough oxygen. In a patient with pneumonia, low oxygen saturation can lead to further respiratory compromise and potential organ damage. Therefore, it is essential for the nurse to notify the physician promptly to obtain an order for supplemental oxygen to correct the hypoxemia and improve the patient's oxygen saturation levels. Delay in addressing low oxygen levels can have serious consequences for the patient's health and recovery.

Correct Answer: B

Rationale: To determine how many milliliters of the medication should be given, it is important to first calculate the total amount of codeine required based on the physician's order. The physician ordered codeine 45 mg IM, and the available concentration is 60 mg/2 mL. To find out the appropriate dose to administer, you can set up a proportion:

Correct Answer: B

Rationale: Antibodies, also known as immunoglobulins, are proteins produced by the immune system in response to the presence of pathogens like bacteria, viruses, and other foreign substances. These proteins are specifically designed to recognize and bind to antigens, which are molecules that the immune system identifies as foreign or harmful. Antibodies play a crucial role in the immune response by marking pathogens for destruction by other immune cells and signaling the immune system to attack the invaders. Therefore, antibodies are primarily made up of proteins.

Correct Answer: D

Rationale: Following a balanced and varied diet is the best dietary advice to maximize immune function in healthy individuals. A balanced diet that includes a variety of nutrient-dense foods provides the necessary vitamins, minerals, antioxidants, and macronutrients to support overall health and immune function. This approach ensures that the body receives a wide range of nutrients that are essential for optimal immune system functioning.

Correct Answer: B

Rationale: AIDS related distal sensory polyneuropathy (DSP) is a common neurological complication in individuals living with HIV or AIDS. One of the hallmark symptoms associated with DSP is the presence of abnormal sensations such as burning pain, tingling, numbness, and hypersensitivity in the distal extremities. These abnormal sensations are typically described as a feeling of pins and needles or electric shocks. Patients may also experience a loss of proprioception, leading to difficulties in coordination and balance. Staggering gait and muscle incoordination (choice A) may be seen in patients with advanced stages of DSP, but the primary symptom associated with the condition is the presence of abnormal sensory perceptions. Delusional thinking (choice C) and incontinence (choice D) are not typical symptoms of AIDS related distal sensory polyneuropathy.