ATI NU 160 Exam 1 Spring 2025

Correct Answer: D. Fever

Explanation:

A fever is a systemic sign of infection, meaning the body is responding to bacteria or other pathogens at the pin sites. Since skeletal traction involves pins or wires directly inserted into the bone, infection at the pin sites (pin-site osteomyelitis) is a major concern. A fever suggests that the infection may be spreading and requires prompt medical attention.

Why the Other Options Are Incorrect:

A. Serosanguineous drainage

Incorrect because serosanguineous drainage (pinkish-clear fluid with a little blood) is normal at pin sites, especially right after placement. If the drainage becomes purulent (thick, yellow/green), foul-smelling, or excessive, it would indicate infection.

B. Mild erythema

Incorrect because mild redness around the pin site is expected due to normal tissue healing. However, increasing redness, spreading erythema, or swelling would be concerning for infection.

C. Warmth

Incorrect because mild warmth is common at pin sites as part of the body’s natural healing response. However, if the warmth is excessive, spreading, or accompanied by pain and drainage, it could indicate infection.

Summary:

The correct answer is D (fever) because it is a systemic sign of infection. While mild redness, warmth, and serosanguineous drainage are normal after pin insertion, worsening symptoms or purulent drainage would be more concerning.

Correct Answer: A. Respiratory Acidosis

Explanation:

Respiratory acidosis occurs when there is hypoventilation, leading to retention of carbon dioxide (CO₂). This results in low pH and high PaCO₂, which match the given ABG values:

pH 7.22 (Low, indicating acidosis)

PaCO₂ 68 mmHg (High, indicating respiratory cause)

HCO₃⁻ 26 mEq/L (Normal, meaning the kidneys have not yet compensated)

These findings confirm uncompensated respiratory acidosis, likely due to hypoventilation (evidenced by the respiratory rate of 7 breaths per minute).

Why the Other Options Are Incorrect:

B. Metabolic Acidosis

Incorrect. Metabolic acidosis is characterized by a low pH and a low bicarbonate (HCO₃⁻) level. In this case, the HCO₃⁻ is normal (26 mEq/L), ruling out a metabolic cause.

C. Metabolic Alkalosis

Incorrect. Metabolic alkalosis occurs with high pH and high HCO₃⁻. Here, the pH is low (acidosis) and bicarbonate is normal, so metabolic alkalosis is not present.

D. Respiratory Alkalosis

Incorrect. Respiratory alkalosis occurs with high pH and low PaCO₂, typically due to hyperventilation (rapid breathing). This client has a low pH (acidosis) and high PaCO₂, indicating the opposite condition—respiratory acidosis.

Summary:

The correct answer is A (Respiratory Acidosis) because the client has low pH and high PaCO₂, indicating hypoventilation and CO₂ retention. The other options do not match the given ABG values.

Correct Answer:  Elevated

Explanation 

The American Heart Association (AHA) classifies blood pressure into specific categories. The client's blood pressure (124/79 mm Hg) falls into the "Elevated" range because:

Systolic BP (124 mm Hg) is between 120–129 mm Hg, which defines elevated blood pressure.

Diastolic BP (79 mm Hg) is below 80 mm Hg, which remains within the expected range.

The key factor for classification is the systolic BP, which is above normal but not high enough for hypertension.

Why the Other Options Are Incorrect:

"Within the expected reference range"

Expected normal BP:

Systolic BP: Less than 120 mm Hg

Diastolic BP: Less than 80 mm Hg

The client's systolic BP (124 mm Hg) exceeds 120, which means it is not within the normal range.

"Stage 1 Hypertension"

Stage 1 Hypertension is defined as:

Systolic BP: 130–139 mm Hg

Diastolic BP: 80–89 mm Hg

The client’s BP (124/79 mm Hg) does not meet these criteria, as the systolic pressure is below 130 mm Hg and the diastolic pressure is under 80 mm Hg.

"Stage 2 Hypertension" 

Stage 2 Hypertension is defined as:

Systolic BP: 140 mm Hg or higher

Diastolic BP: 90 mm Hg or higher

The client’s BP (124/79 mm Hg) does not meet these values, so this classification is incorrect.

Summary:

The correct classification for a BP of 124/79 mm Hg is "Elevated" because the systolic pressure (124 mm Hg) is above the normal range (less than 120 mm Hg) but below Stage 1 hypertension (130 mm Hg or higher). The diastolic pressure (79 mm Hg) is within the normal range.

Key takeaway: Elevated BP increases the risk of developing hypertension and cardiovascular diseases if left unmanaged. The client should adopt lifestyle changes such as reducing sodium intake, increasing physical activity, and monitoring BP regularly.

Correct Answer: "Increasing my intake of foods containing trans-fatty acids can lower my risk."

Explanation:

This statement is incorrect and indicates a need for further teaching because:

Trans-fatty acids (trans fats) are harmful to cardiovascular health.

They increase low-density lipoprotein (LDL) cholesterol (the "bad" cholesterol), which promotes plaque buildup in arteries.

They decrease high-density lipoprotein (HDL) cholesterol (the "good" cholesterol), which helps remove excess cholesterol from the bloodstream.

Consuming trans fats increases the risk of atherosclerosis, heart attacks, and strokes.

Sources of trans fats include:

Processed and fried foods (e.g., french fries, fried chicken)

Commercially baked goods (e.g., pastries, cookies, doughnuts)

Margarine and shortening

Since the client mistakenly believes trans fats can lower cardiovascular risk, the nurse must correct this misconception.

Why the Other Statements Are Correct:

"A weight loss program can decrease my LDL cholesterol level." 

Losing excess weight, particularly abdominal fat, helps lower LDL cholesterol and reduces cardiovascular risk. Obesity is linked to high cholesterol, hypertension, and insulin resistance, all of which contribute to heart disease.

"Adding foods containing omega-3 fatty acids to my diet can lower my risk." 

Omega-3 fatty acids are heart-healthy fats found in fish (e.g., salmon, mackerel), flaxseeds, and walnuts. They help reduce inflammation, lower triglycerides, and decrease blood pressure, all of which reduce cardiovascular disease risk.

 "Exercising regularly will increase HDL cholesterol levels."

Physical activity boosts HDL cholesterol (the "good" cholesterol), which helps remove excess cholesterol from arteries. Regular aerobic exercise (e.g., brisk walking, cycling, swimming) strengthens the heart and reduces the risk of heart disease.

Summary:

The incorrect statement is: "Increasing my intake of foods containing trans-fatty acids can lower my risk."

Trans fats increase LDL, decrease HDL, and promote heart disease. The nurse should educate the client about avoiding trans fats and choosing healthier fats, such as omega-3s and unsaturated fats. All other statements are correct and support heart health.

Correct Answer: b. A 44-year-old myocardial infarction (MI) client who is complaining of nausea.

Explanation:

When prioritizing which client to see first, the nurse should use the ABC (Airway, Breathing, Circulation) approach and consider potential life-threatening conditions

A 44-year-old myocardial infarction (MI) client who is complaining of nausea.

Nausea is a serious concern in a client with a recent MI. It may indicate ongoing myocardial ischemia or infarction progression, which can lead to cardiogenic shock or life-threatening dysrhythmias. Cardiac complications take priority over post-op pain, IV infiltration, or surgical wound concerns.

A 34-year-old post-op appendectomy client (5 hours) complaining of pain. 

Post-operative pain is expected and can be managed. Assess pain, but this is not immediately life-threatening.

A 26-year-old client with dehydration whose IV has infiltrated. 

IV infiltration requires intervention, but it does not pose an immediate life threat. The nurse can restart the IV and monitor for complications, but it is not the highest priority.

A 63-year-old post-op hysterectomy client (3 days) with a saturated serosanguinous dressing.

Serosanguinous drainage is common post-op. Although excessive drainage may indicate a wound complication, it is not immediately life-threatening compared to potential cardiac deterioration.

Summary:

The MI client with nausea is the highest priority because nausea can be a sign of ongoing cardiac ischemia, worsening infarction, or complications like cardiogenic shock. Pain, IV infiltration, and surgical wound drainage are important but not immediately life-threatening. Always prioritize conditions that affect the heart, brain, or airway first.

Correct Answer: A. "Sit upright or stand for at least 30 minutes after taking this medication."

Explanation:

Alendronate is a bisphosphonate used to treat and prevent osteoporosis by inhibiting bone resorption. However, it can cause severe esophageal irritation, ulceration, and reflux. To reduce this risk, the patient must remain upright for at least 30 minutes after taking it to prevent reflux and esophageal damage.

Why the Other Options Are Incorrect:

B. "Take this medication with food." – Incorrect because food interferes with the absorption of alendronate. It should be taken on an empty stomach with a full glass of water at least 30 minutes before eating or drinking anything else.

C. "Take this medication with orange juice." – Incorrect because orange juice (or any acidic drink) can interfere with the medication’s absorption. Alendronate should only be taken with plain water.

D. "Chew or suck on the tablet." – Incorrect because alendronate tablets must be swallowed whole. Chewing or sucking on them increases the risk of oropharyngeal and esophageal irritation.

Summary:

The correct answer is A because sitting upright for at least 30 minutes helps prevent esophageal irritation. The other options are incorrect because food and acidic drinks affect absorption, and chewing increases the risk of irritation.

Correct Answers: 

Warmth

erythema

swelling.

Explanation:

Deep vein thrombosis (DVT) is a condition where a blood clot forms in a deep vein, usually in the leg. This blockage causes inflammation and venous congestion, leading to specific symptoms.

Warmth occurs because of increased blood flow and inflammation around the clot.

Erythema (redness) develops due to irritation and swelling of the surrounding tissues.

Swelling happens because the clot disrupts normal circulation, leading to fluid accumulation in the leg.

Why the Other Options Are Incorrect:

Numbness is not a typical symptom of DVT. It is more commonly associated with nerve damage or arterial insufficiency rather than a venous clot.

Bleeding does not occur as a direct symptom of DVT. However, anticoagulant medications used to treat DVT can increase the risk of bleeding, but the clot itself does not cause bleeding.

Summary:

A client with DVT will typically experience warmth, redness, and swelling in the affected leg. Numbness and bleeding are not characteristic of this condition and may indicate other medical issues. Recognizing these symptoms early is essential to prevent complications such as pulmonary embolism.

Correct Answer: "I may eat 10 ounces of lean protein each day."

Explanation:

For clients with hypertension, a heart-healthy diet typically emphasizes moderation and balance in all food groups. The statement about consuming 10 ounces of lean protein each day indicates a need for further teaching because 10 ounces is an excessive amount of protein, which could lead to increased intake of calories and fats, even if the protein is lean. Typically, a healthy serving of protein for an adult would be about 3-6 ounces per meal, depending on individual dietary needs.

Why the Other Statements Are Correct:

"Fresh fruits make a good snack option."

This is correct. Fresh fruits are naturally low in sodium, high in fiber, and rich in vitamins and minerals, making them a great choice for a heart-healthy diet.

"I will replace table salt with dried herbs."

This is also correct. Reducing sodium intake is essential for managing hypertension. Replacing table salt with dried herbs and spices is a good strategy to enhance flavor without adding sodium.

"I may thicken gravies with cornstarch as I cook."

This is correct. Cornstarch is a low-sodium thickening agent and can be used to thicken gravies without adding unnecessary sodium, making it a better option than using pre-made gravies or high-sodium thickeners.

Summary:

The statement about consuming 10 ounces of lean protein daily indicates a need for further teaching. A heart-healthy diet for clients with hypertension emphasizes portion control, particularly for protein, and focuses on fresh fruits, reducing sodium intake, and using low-sodium alternatives for flavoring and thickening foods.

The correct answer is C. Confusion.

Explanation

In older adult clients, a urinary tract infection (UTI) may not present with the typical symptoms seen in younger adults, such as dysuria (painful urination) or fever. Instead, older adults may exhibit more generalized or atypical symptoms, such as confusion or altered mental status. This is often referred to as "delirium" associated with infections, and it can be one of the most common signs of a UTI in the elderly population. The infection may cause an inflammatory response that affects the central nervous system, leading to confusion, agitation, or disorientation.

why the other choices are incorrect:

A. Low back pain

Low back pain can occur with a UTI, especially if there is involvement of the kidneys (such as in pyelonephritis), but it is not specifically associated with UTIs in older adults. Older clients with a UTI may not always present with classic flank pain or low back pain.

B. Urinary retention

Urinary retention can occur with a UTI, especially if there is obstruction or a more complicated urinary tract issue. However, urinary retention is not a hallmark sign of UTI in older adults. More commonly, older adults with UTIs experience confusion or incontinence rather than urinary retention.

D. Incontinence

Incontinence can be a symptom of a UTI, particularly in older adults, but it is not as specific to UTI as confusion. Incontinence can also be caused by other factors, such as age-related changes, neurological disorders, or cognitive decline. Although incontinence may be a presenting symptom, it is not as distinctively associated with UTIs as confusion is.

Summary:

For older adult clients with urinary tract infections, confusion is the manifestation that is most specifically associated with UTIs in this population. Due to age-related changes and potential coexisting conditions, UTIs in older adults often present with atypical symptoms, and confusion is one of the primary signs to look out for.