Which assessment finding will the nurse expect for a patient with the following laboratory values: sodium 145 mEq/L, potassium 45 mq, calcium 45 mg/dL?
Light-headedness when standing up
Weak quadriceps muscles
Decreased deep tendon reflexes
Tingling of extremities
The Correct Answer is D
A. Light-headedness when standing up:
Elevated potassium levels (hyperkalemia) can lead to muscle weakness or paralysis, cardiac dysrhythmias, and even cardiac arrest. Light-headedness when standing up is more commonly associated with orthostatic hypotension or volume depletion rather than electrolyte imbalances like hyperkalemia.
B. Weak quadriceps muscles:
Weakness in the quadriceps muscles is not typically associated with the electrolyte imbalances presented in the scenario. Hyperkalemia can cause muscle weakness, but it is not specific to the quadriceps.
C. Decreased deep tendon reflexes:
Decreased deep tendon reflexes are not typically associated with the electrolyte imbalances presented in the scenario. Hyperkalemia can lead to hyperreflexia or absent reflexes, but it is not specific to decreased deep tendon reflexes.
D. Tingling of extremities:
This is the correct answer. Hypocalcemia, indicated by the low calcium level in the scenario, can manifest with symptoms such as tingling or numbness of the extremities, muscle cramps, and tetany. Calcium plays a crucial role in nerve transmission, and low levels can lead to sensory disturbances like tingling in the extremities.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. "It might help if I tried sleeping only on my back."
Sleeping on the back can actually worsen obstructive sleep apnea because gravity can cause the tongue and soft tissues to obstruct the airway more easily. The recommended position to reduce apneic episodes is to sleep on the side.
B. "I’ll sleep better if I take a sleeping pill at night."
Taking a sleeping pill can relax the muscles of the throat, which might worsen sleep apnea by increasing the likelihood of airway obstruction during sleep.
C. "If I could lose about 50 pounds, I might stop having so many apneic episodes."
Weight loss is a key factor in reducing the frequency and severity of obstructive sleep apnea. Excess weight, particularly around the neck, can increase the risk of airway obstruction during sleep.
D. "I’ll get a humidifier to run at my bedside at night."
While a humidifier can make the air more comfortable to breathe, it does not directly reduce the number of apneic episodes. It might help with symptoms like dry mouth or nasal congestion but is not a primary treatment for obstructive sleep apnea.
Correct Answer is A
Explanation
A) Dysrhythmias:
Straining while defecating can trigger the Valsalva maneuver, which involves taking a deep breath and bearing down. This can lead to increased intrathoracic pressure, decreased venous return to the heart, and subsequently a sudden drop in blood pressure when the strain is released. These changes can cause cardiac dysrhythmias, particularly in older adults or those with underlying heart conditions.
B) Dilated pupils:
Dilated pupils are not a known consequence of straining while defecating. Pupillary dilation is typically associated with responses to low light, certain medications, or neurological conditions, rather than gastrointestinal strain.
C) Gastric ulcer:
Gastric ulcers are caused by factors such as Helicobacter pylori infection, prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs), or excessive stomach acid. Straining during defecation does not contribute to the development of gastric ulcers.
D) Diarrhea:
Straining while defecating is more likely to be associated with constipation rather than diarrhea. Diarrhea involves frequent, loose, or watery stools, whereas straining typically occurs due to hard stools and difficulty passing them.
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