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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Correct Answer is ["A","B","C","D","F"]
Explanation
A. Applying knowledge of disease processes is essential in preventing the spread of infections and understanding transmission routes.
B. Proper disposal of supplies is crucial in minimizing the risk of cross-contamination and infection spread.
C. Checking the negative-pressure system is critical to ensure it functions properly to contain airborne pathogens.
D. Hand hygiene is a key practice in preventing infection and should be performed before and after patient contact in both scenarios.
E. This statement is misleading; while some precautions may overlap, there are specific differences that must be addressed in interventions for airborne versus contact precautions.
F. It is important for patients in airborne precautions to wear a mask during transportation to prevent the spread of infectious particles.
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.