Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
A home health nurse is making a home visit to a client who takes a daily diuretic for heart failure. Which of the following manifestations should the nurse identify as indicating the client is hypokalemic?
A. Dyspnea
Dyspnea is a difficulty or labored breathing that can be caused by various respiratory or cardiac conditions, such as asthma, pneumonia, pulmonary edema, or heart failure. It is not a specific sign of hypokalemia, although severe hypokalemia can affect respiratory muscle function and cause respiratory failure.
B. Oliguria
Oliguria is a reduced urine output, usually less than 400 mL per day or 30 mL per hour. It can be caused by various renal or fluid balance disorders, such as acute kidney injury, dehydration, or shock. It is not a specific sign of hypokalemia, although severe hypokalemia can impair renal function and cause renal failure.
C. Pitting edema
Pitting edema is a swelling of the tissues that leaves an indentation when pressed with a finger. It can be caused by various fluid retention disorders, such as heart failure, liver cirrhosis, or nephrotic syndrome. It is not a specific sign of hypokalemia, although severe hypokalemia can affect fluid and electrolyte balance and cause edema.
D. Fatigue
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Full Explanation
Hypokalemia is a low serum potassium level, usually below 3.5 mEq/L. It can be caused by diuretics that increase potassium excretion, such as thiazides or loop diuretics. Potassium is essential for normal muscle and nerve function, and hypokalemia can impair cardiac, skeletal, and smooth muscle activity. Symptoms of hypokalemia include fatigue, weakness, muscle cramps, arrhythmias, constipation, and hyporeflexia.
- Dyspnea is difficulty or labored breathing that can be caused by various respiratory or cardiac conditions, such as asthma, pneumonia, pulmonary edema, or heart failure. It is not a specific sign of hypokalemia, although severe hypokalemia can affect respiratory muscle function and cause respiratory failure.
- Oliguria is a reduced urine output, usually less than 400 mL per day or 30 mL per hour. It can be caused by various renal or fluid balance disorders, such as acute kidney injury, dehydration, or shock. It is not a specific sign of hypokalemia, although severe hypokalemia can impair renal function and cause renal failure.
- Pitting edema is a swelling of the tissues that leaves an indentation when pressed with a finger. It can be caused by various fluid retention disorders, such as heart failure, liver cirrhosis, or nephrotic syndrome. It is not a specific sign of hypokalemia, although severe hypokalemia can affect fluid and electrolyte balance and cause edema.
Similar Questions
A nurse is caring for a client who has aphasia following a stroke. A family member asks the nurse how she should communicate with the client. Which of the following responses by the nurse is appropriate?
A. "Use simple, childlike statements when speaking."
Using simple language is helpful, but speaking in a childlike manner can be demeaning and may lower the client’s self-esteem. Communication should remain respectful and age-appropriate.
B. "Incorporate nonverbal cues in the conversation."
Incorporating nonverbal cues such as gestures, facial expressions, pictures, and written words supports understanding. Clients with aphasia often benefit from visual aids and other alternative communication strategies to enhance comprehension.
C. "Use a higher-pitched tone of voice when speaking."
Raising the pitch of the voice does not improve comprehension in aphasia because the issue is related to language processing rather than hearing ability. A normal tone should be maintained unless the client has a hearing impairment.
D. "Ask multiple choice questions as part of the conversation."
Asking multiple-choice questions can sometimes assist with expressive aphasia; however, relying solely on this method may limit natural communication. The broader and more supportive approach is to incorporate nonverbal communication techniques.
Full Explanation
A. Using simple language is helpful, but speaking in a childlike manner can be demeaning and may lower the client’s self-esteem. Communication should remain respectful and age-appropriate.
B. Incorporating nonverbal cues such as gestures, facial expressions, pictures, and written words supports understanding. Clients with aphasia often benefit from visual aids and other alternative communication strategies to enhance comprehension.
C. Raising the pitch of the voice does not improve comprehension in aphasia because the issue is related to language processing rather than hearing ability. A normal tone should be maintained unless the client has a hearing impairment.
D. Asking multiple-choice questions can sometimes assist with expressive aphasia; however, relying solely on this method may limit natural communication. The broader and more supportive approach is to incorporate nonverbal communication techniques.
A nurse is caring for a client who has had a hemorrhagic stroke following a ruptured cerebral aneurysm. Which of the following manifestations should the nurse expect?
A. History of neurologic deficits lasting less than 1 hr
History of neurologic deficits lasting less than 1 hr. This statement is incorrect because it describes a transient ischemic atack (TIA), which is a temporary interruption of blood flow to the brain that causes brief neurologic symptoms that resolve within 24 hours. A TIA is often a warning sign of an impending ischemic stroke, which is a type of stroke that occurs when a blood clot blocks an artery in the brain and reduces blood flow to the affected area.
B. Maintains consciousness
Maintains consciousness. This statement is incorrect because most clients with hemorrhagic stroke lose consciousness or have altered mental status due to the increased intracranial pressure and brain damage caused by the bleeding. The level of consciousness depends on the location and extent of the hemorrhage, but it usually deteriorates rapidly.
C. Manifestations preceded by a severe headache
D. Gradual onset of several hours
Gradual onset of several hours. This statement is incorrect because hemorrhagic stroke usually has a sudden onset, unlike ischemic stroke, which may have a gradual onset over several hours or days. The onset of hemorrhagic stroke is often associated with physical exertion, emotional stress, or hypertension, which can increase the risk of aneurysm rupture.
Full Explanation
- A hemorrhagic stroke is a type of stroke that occurs when a blood vessel in the brain ruptures and bleeds into the surrounding tissue. A common cause of hemorrhagic stroke is a cerebral aneurysm, which is a weak or bulging spot in an artery wall. When an aneurysm ruptures, it causes sudden and severe bleeding in the brain, which can damage brain cells and increase intracranial pressure. Symptoms of a hemorrhagic stroke include a sudden and severe headache, often described as "the worst headache of my life", followed by neurologic deficits, such as weakness, numbness, vision loss, speech problems, confusion, or loss of consciousness
- The other options are not correct because:
- History of neurologic deficits lasting less than 1 hr. This statement is incorrect because it describes a transient ischemic atack (TIA), which is a temporary interruption of blood flow to the brain that causes brief neurologic symptoms that resolve within 24 hours. A TIA is often a warning sign of an impending ischemic stroke, which is a type of stroke that occurs when a blood clot blocks an artery in the brain and reduces blood flow to the affected area.
- Maintains consciousness. This statement is incorrect because most clients with hemorrhagic stroke lose consciousness or have altered mental status due to the increased intracranial pressure and brain damage caused by the bleeding. The level of consciousness depends on the location and extent of the hemorrhage, but it usually deteriorates rapidly.
- Gradual onset of several hours. This statement is incorrect because hemorrhagic stroke usually has a sudden onset, unlike ischemic stroke, which may have a gradual onset over several hours or days. The onset of hemorrhagic stroke is often associated with physical exertion, emotional stress, or hypertension, which can increase the risk of aneurysm rupture.
A nurse is interpreting the ECG strip of a client who has bradycardia. Which of the following cardiac components should the nurse identify as the role of the P wave?
A. Slow repolarization of ventricular Purkinje fibers
Slow repolarization of ventricular Purkinje fibers. This statement is incorrect because it describes the U wave, which is a small and sometimes invisible wave that follows the T wave on the ECG strip. It reflects the repolarization of the ventricular Purkinje fibers, which are specialized cardiac cells that conduct electrical impulses to the ventricles. The U wave is more prominent in conditions that cause hypokalemia, such as diuretic use or vomiting.
B. Atrial depolarization
C. Early ventricular repolarization
Early ventricular repolarization. This statement is incorrect because it describes the ST segment, which is the flat line between the QRS complex and the T wave on the ECG strip. It reflects the early phase of ventricular repolarization, which is the process of restoring the electrical charge of the cardiac cells to negative after a contraction. The ST segment can be elevated or depressed in conditions that cause myocardial ischemia or injury, such as angina or myocardial infarction.
D. Ventricular depolarization
Ventricular depolarization. This statement is incorrect because it describes the QRS complex, which is the largest and most visible wave on the ECG strip. It reflects the depolarization of the ventricular myocardium, which triggers a ventricular contraction. The QRS complex follows the P wave and precedes the T wave on the ECG strip.
Full Explanation
The P wave is the first wave on the ECG strip and represents the electrical activity of the atria. It reflects the depolarization of the atrial myocardium, which is the process of changing the electrical charge of the cardiac cells from negative to positive, triggering a contraction. The P wave precedes the QRS complex, which represents ventricular depolarization, and the T wave, which represents ventricular repolarization.
The other options are not correct because:
a. Slow repolarization of ventricular Purkinje fibers. This statement is incorrect because it describes the U wave, which is a small and sometimes invisible wave that follows the T wave on the ECG strip. It reflects the repolarization of the ventricular Purkinje fibers, which are specialized cardiac cells that conduct electrical impulses to the ventricles. The U wave is more prominent in conditions that cause hypokalemia, such as diuretic use or vomiting.
c. Early ventricular repolarization. This statement is incorrect because it describes the ST segment, which is the flat line between the QRS complex and the T wave on the ECG strip. It reflects the early phase of ventricular repolarization, which is the process of restoring the electrical charge of the cardiac cells to negative after a contraction. The ST segment can be elevated or depressed in conditions that cause myocardial ischemia or injury, such as angina or myocardial infarction.
d. Ventricular depolarization. This statement is incorrect because it describes the QRS complex, which is the largest and most visible wave on the ECG strip. It reflects the depolarization of the ventricular myocardium, which triggers a ventricular contraction. The QRS complex follows the P wave and precedes the T wave on the ECG strip.