A client with a brain tumor is experiencing sudden onset of severe headache, vomiting, and altered level of consciousness.
Which condition should the nurse suspect?
Migraine headache.
Dehydration.
Increased intracranial pressure.
Gastric ulcer.
The Correct Answer is C
This clinical presentation requires applying knowledge of Monro-Kellie doctrine and neurological assessment. Understanding how space-occupying lesions like brain tumors affect intracranial dynamics is vital for identifying life-threatening shifts in pressure that manifest as headache, projectile vomiting, and mental status changes.
Choice A rationale
Migraine headaches typically present with unilateral throbbing pain and photophobia but rarely cause sudden, severe altered consciousness in this context. While painful, they do not explain the acute neurological decline associated with a known intracranial tumor.
Choice B rationale
Dehydration usually presents with tachycardia, poor skin turgor, and hypotension. While it can cause lightheadedness or confusion in extreme cases, it does not typically cause the sudden onset of a severe headache and vomiting seen in neurological emergencies.
Choice C rationale
Increased intracranial pressure results from the tumor mass or associated edema. It compresses brain tissue and blood vessels, leading to the classic triad of headache, vomiting, and altered consciousness, signaling a potential brain herniation and neurological crisis.
Choice D rationale
A gastric ulcer causes epigastric pain and potentially hematemesis if perforated. While vomiting may occur, it is unrelated to sudden neurological changes or severe headaches. This diagnosis fails to address the primary intracranial pathology and accompanying mental deficits.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Assessing electrolyte imbalances in pancreatitis requires understanding how calcium sequestration affects cardiac conduction. Knowledge of cardiac electrophysiology is applied to identify how low serum calcium, typically below 8.5 mg/dL, alters the duration of ventricular depolarization and repolarization.
Choice A rationale
Peaked T-waves are classically associated with hyperkalemia, not hypocalcemia. Hyperkalemia involves potassium levels > 5.0 mEq/L. This ECG change reflects rapid repolarization and is not an anticipated finding for a client experiencing a deficit in calcium.
Choice B rationale
A shortened QT interval is a characteristic finding in hypercalcemia, where serum calcium levels exceed 10.5 mg/dL. Excess calcium accelerates the plateau phase of the action potential, leading to faster ventricular repolarization and a shortened interval.
Choice C rationale
A widened QRS complex is usually seen in hyperkalemia or bundle branch blocks. While severe electrolyte shifts can affect the QRS, it is not the primary or most common ECG manifestation of isolated low calcium.
Choice D rationale
Hypocalcemia slows the entry of calcium into cardiac cells during the plateau phase. This delay lengthens the ST segment and the QT interval. A prolonged QT interval increases the risk for lethal ventricular arrhythmias like Torsades.
Correct Answer is B
Explanation
Assessment of respiratory patterns in terminal patients involves identifying neurological and metabolic shifts. This scenario requires knowledge of breathing cycles, specifically the crescendo-decrescendo pattern and apnea associated with brainstem dysfunction or advanced heart failure during end-of-life care.
Choice A rationale
Kussmaul respirations involve deep, rapid breathing typically seen in metabolic acidosis. This pattern is a compensatory mechanism to expel excess carbon dioxide, lowering arterial acidity, and is distinct from the cyclic apnea seen in terminal brain injury.
Choice B rationale
Cheyne-Stokes is characterized by rhythmic waxing and waning of breathing depth followed by apnea. It occurs due to delayed feedback in the respiratory center, often seen in stroke, traumatic brain injury, or profound heart failure.
Choice C rationale
Biot respirations involve clusters of shallow breaths followed by irregular periods of apnea. This occurs with damage to the medulla oblongata and lacks the rhythmic, gradual increase and decrease in depth seen in the Cheyne-Stokes pattern.
Choice D rationale
Orthopnea is the physical inability to breathe comfortably while lying flat. It is common in congestive heart failure and pulmonary edema, requiring the patient to sit upright to decrease venous return and improve diaphragmatic excursion.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.