Which assessment finding will the nurse expect for a patient with the following laboratory values: sodium 145 mEq/L, potassium 4.5 mEq/L, calcium 4.5 mg/dL?
Weak quadriceps muscles
Decreased deep tendon reflexes
Tingling of extremities with possible tetany
Light-headedness when standing up
The Correct Answer is C
A. Weak quadriceps muscles can occur with electrolyte imbalances, but the provided values do not indicate hypokalemia or other issues causing muscle weakness.
B. Decreased deep tendon reflexes are generally associated with elevated calcium levels or other electrolyte disturbances but are not specifically indicated by the given lab values.
C. A calcium level of 4.5 mg/dL is significantly low (normal range is typically around 8.5-10.5 mg/dL), which can lead to hypocalcemia symptoms such as tingling of the extremities and tetany due to increased neuromuscular excitability.
D. Light-headedness when standing up (orthostatic hypotension) is more related to fluid volume status or dehydration rather than directly related to the given electrolyte levels.
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View Related questions
Correct Answer is A
Explanation
A. After a nurse is exposed to blood from a cut by a used scalpel, it is crucial to test the patient for bloodborne pathogens (e.g., HIV, hepatitis B, hepatitis C) and to offer post-exposure prophylaxis or treatment to the nurse if indicated.
B. While removing gloves and disposing of them properly is part of standard infection control practices, it is not the primary process required after an exposure incident.
C. Although the nurse should report the incident, providing a medical evaluation should follow the protocols established by the facility, not just the manager's assessment.
D. Properly disposing of the scalpel in a sharps container is necessary for safety but does not directly address the required process for managing exposure to blood.
Correct Answer is D
Explanation
A. Sequential compression devices are used to prevent deep vein thrombosis and are not relevant for assessing orthostatic hypotension.
B. Elastic stockings are used to promote venous return and prevent edema, not for measuring blood pressure.
C. A thermometer measures body temperature and does not provide information on blood pressure or orthostatic changes.
D. A blood pressure cuff is essential for assessing orthostatic hypotension. The nurse will measure blood pressure while the patient is supine, sitting, and standing to determine any significant changes that occur with position changes.