D444 Adult Health I
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Free D444 Adult Health I Questions
1. A patient on digoxin presents with an apical pulse of 55 bpm and reports feeling dizzy. What should the nurse do next?
- Hold the digoxin medication and assess the patient further.
- Administer the digoxin medication as prescribed.
- Document the pulse and continue with the medication.
- Increase the patient's fluid intake.
Explanation
Digoxin can slow the heart rate and cause bradycardia, especially if the patient is experiencing toxicity or is sensitive to the medication. An apical pulse below 60 bpm combined with symptoms such as dizziness warrants holding the medication and further assessment. The nurse should notify the physician and monitor the patient for additional signs of digoxin toxicity, including visual disturbances, nausea, or further changes in heart rhythm. Administering digoxin or simply documenting the pulse without intervention could worsen bradycardia and potentially lead to adverse cardiac events.
2. What is the mnemonic used to remember the placement of leads in a 5-lead EKG?
- White on the left, smoke over fire on the right, green is the ground, brown is in the center.
- White on the right, smoke over fire on the left, green is the ground, brown is in the center.
- Red on the right, smoke under fire on the left, green is the ground, brown is in the center.
- White on the right, smoke over fire on the left, blue is the ground, brown is in the center.
Explanation
The correct mnemonic for remembering 5-lead EKG placement is “White on the right, smoke over fire on the left, green is the ground, brown in the center.” This helps healthcare providers quickly identify proper electrode locations: the white lead goes on the right upper chest (right arm), black (smoke) on the left upper chest (left arm), red (fire) on the left lower chest (left leg), green (ground) on the right lower chest (right leg), and brown (V lead) in the center near the sternum. Proper placement ensures accurate monitoring of cardiac electrical activity and detection of arrhythmias.
3. What prominent wave is often observed on an ECG in patients with hypokalemia?
- P wave
- QRS complex
- U wave
- T wave
Explanation
In hypokalemia, one of the hallmark ECG changes is the appearance of prominent U waves. U waves are small, positive deflections that follow the T wave and are best seen in the precordial leads. They occur due to delayed repolarization of the ventricular Purkinje fibers, a result of low serum potassium levels. As potassium plays a crucial role in cardiac repolarization, hypokalemia prolongs repolarization, leading to this characteristic finding. Severe hypokalemia can also cause arrhythmias and flattened T waves.
4. Describe the significance of a recent strep infection in the context of acute glomerulonephritis diagnosis.
- A recent strep infection has no relevance to kidney issues.
- A recent strep infection can trigger an immune response leading to glomerulonephritis.
- A recent strep infection is a sign of chronic kidney disease.
- A recent strep infection indicates a viral cause of glomerulonephritis.
Explanation
Acute post-streptococcal glomerulonephritis (APSGN) often occurs after a recent streptococcal infection, such as strep throat or skin infection. The body’s immune response to the bacteria leads to the formation of immune complexes that deposit in the glomeruli, causing inflammation and impaired kidney function. Symptoms may include hematuria, edema, hypertension, and decreased urine output. Identifying a recent strep infection is significant for diagnosis and helps distinguish APSGN from other forms of kidney disease.
5. What does the A1C test measure in relation to diabetes management?
- Lipid profiles
- Current blood glucose levels
- Insulin sensitivity
- Glucose levels over the past 2–3 months
Explanation
The A1C test, also known as glycosylated hemoglobin, measures the percentage of hemoglobin that has glucose attached to it. Since red blood cells live for about 120 days, this test reflects the average blood glucose levels over the previous 2–3 months. It is a vital tool for monitoring long-term glycemic control in diabetic patients and helps assess how well treatment plans (diet, medication, insulin) are managing blood sugar over time.
6. What is the primary purpose of thoracentesis?
- To drain fluid from the pleural space
- To perform a biopsy of lung tissue
- To administer medication into the pleural cavity
- To measure lung capacity
Explanation
Thoracentesis is a procedure performed to remove excess fluid from the pleural space, the area between the lungs and the chest wall. This procedure can serve both diagnostic and therapeutic purposes. Diagnostically, the collected fluid is analyzed to determine the cause of pleural effusion, such as infection, malignancy, or heart failure. Therapeutically, draining the fluid helps relieve symptoms like shortness of breath and chest pain caused by lung compression. It is not used to obtain lung tissue, administer medications, or measure lung capacity.
7. What are the symptoms of hypoglycemia, and how should it be treated in a person with diabetes?
- Symptoms include dizziness, fatigue, and shortness of breath, and it can be treated by consuming a high-protein snack, such as a protein bar or cheese and crackers
- Symptoms include sweating, shakiness, confusion, and irritability, and it can be treated by consuming 15–20 grams of fast-acting carbohydrate, such as glucose tablets or fruit juice
- Symptoms include abdominal pain, blurred vision, and chest pain, and it can be treated by taking a dose of insulin or an oral diabetes medication to raise blood sugar levels
- Symptoms include nausea, headache, and rapid heartbeat, and it can be treated by consuming a slow-release carbohydrate, such as a granola bar or oatmeal
Explanation
Hypoglycemia occurs when blood glucose levels fall below normal, usually under 70 mg/dL. Typical symptoms include sweating, shakiness, confusion, irritability, dizziness, and hunger. In severe cases, it can cause seizures or loss of consciousness. The most effective immediate treatment is the administration of 15–20 grams of fast-acting carbohydrates, such as glucose tablets, fruit juice, or regular soda, to quickly raise blood glucose levels. After 15 minutes, blood sugar should be rechecked, and another serving of carbohydrates should be given if levels remain low.
8. Describe how coronary atherosclerosis impacts the oxygen supply to the heart muscle.
- Coronary atherosclerosis increases blood flow to the heart muscle.
- Coronary atherosclerosis narrows the arteries, reducing blood flow and oxygen to the heart muscle.
- Coronary atherosclerosis has no effect on oxygen supply to the heart muscle.
- Coronary atherosclerosis strengthens the heart muscle.
Explanation
Coronary atherosclerosis is the buildup of fatty plaques, cholesterol, and other substances inside the coronary arteries. This buildup causes narrowing of the arterial lumen, which restricts blood flow and thereby reduces the oxygen supply to the heart muscle. When the oxygen demand of the myocardium exceeds supply, ischemia occurs, potentially leading to angina or myocardial infarction (heart attack). Managing atherosclerosis involves lifestyle changes, medications to lower cholesterol and blood pressure, and, in severe cases, surgical interventions such as angioplasty or bypass surgery.
9. What is the typical frequency of hemodialysis sessions per week?
- 4 times a week
- 3 times a week
- Once a week
- 2 times a week
Explanation
The typical frequency for hemodialysis treatments in patients with end-stage renal disease (ESRD) is three times per week. Each session usually lasts about 3 to 5 hours, depending on the patient’s fluid status, lab results, and medical condition. This schedule allows adequate removal of waste products, excess fluids, and electrolytes while maintaining safe and stable hemodynamic conditions. More frequent sessions are occasionally prescribed for patients with higher metabolic demands or complications, but three sessions weekly remains the standard of care.
10. What is a common symptom of a urinary tract infection (UTI) in elderly patients?
- Frequent urination.
- Fever and chills.
- Confusion or change in mental status.
- Nausea and vomiting.
Explanation
In elderly patients, a urinary tract infection often presents atypically. Instead of the classic symptoms seen in younger adults—such as dysuria, frequency, or urgency—older adults may primarily exhibit confusion or sudden changes in mental status. This occurs because infections can exacerbate cognitive decline and trigger delirium in older adults due to age-related changes in immune response and metabolism. Early recognition of altered mental status as a sign of infection is critical for timely treatment and prevention of complications like sepsis.
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