NURS 510 Nursing Research Methods

Correct Answer: B) Fever and productive cough

Explanation:

Methotrexate suppresses the immune system as part of its action as a DMARD, helping to control inflammation in rheumatoid arthritis (RA). However, this immunosuppression also increases the client’s risk for infections, particularly respiratory infections such as pneumonia. A fever and productive cough could indicate a serious complication like lung infection or methotrexate-induced pneumonitis, which requires immediate medical evaluation.

Why the other options are incorrect:

A) Deformity of the affected joints:

Joint deformities result from progressive, uncontrolled RA, not directly from the use of methotrexate. In fact, methotrexate is prescribed to prevent joint damage.

C) Generalized aching and stiffness:

These are symptoms of active RA, not specific complications of methotrexate therapy. If the drug is effective, these symptoms should improve.

D) Presence of rheumatoid nodules:

These are a manifestation of RA, not a complication of methotrexate. They may occur despite or before starting treatment.

Correct Answer:

A) A 45-year-old male with a BMI of 40 taking hydrochlorothiazide and aspirin

Explanation:

Gout results from the accumulation of uric acid crystals in joints due to hyperuricemia. Key risk factors include male gender, obesity, certain medications, and dietary habits. This patient exhibits multiple major risks: he is male, has a BMI of 40 (severe obesity), and takes hydrochlorothiazide (a thiazide diuretic) and low-dose aspirin—both of which impair renal uric acid excretion. This combination makes him highly susceptible to developing gout.

Why the Other Options Are Wrong:

B) A 39-year-old female hospitalized with bulimia that has a BMI of 24:

While bulimia can lead to electrolyte disturbances, it is not a recognized contributor to gout. This patient’s normal BMI and lack of known gout-related medications or comorbidities put her at low risk. Additionally, female sex is generally protective against gout, especially before menopause.

C) A 27-year-old female with ulcerative colitis:

Ulcerative colitis affects the colon and causes systemic inflammation, but it does not significantly raise uric acid levels. She is young, female, and has no noted exposure to medications or risk factors that elevate uric acid, making her risk for gout minimal.

D) A 56-year-old male who limits consumption of smoked meat and some cheeses:

While age and male gender are risk factors, this patient is actively limiting purine-rich foods, which decreases his gout risk. Without evidence of obesity or use of uric acid–retaining medications, his risk is lower than that of the patient in Option A.

Correct Answer: B) Prostaglandins are causing the upward displacement of the thermostatic set point

Explanation:

Pyrexia (fever) develops when endogenous pyrogens—such as interleukin-1 (IL-1), IL-6, and tumor necrosis factor (TNF)—are released in response to infection or inflammation. These pyrogens stimulate the hypothalamus to produce prostaglandin E2 (PGE2). PGE2 then acts on the hypothalamus to elevate the body’s thermostatic set point, leading the body to initiate heat-generating behaviors like shivering and vasoconstriction, which raise core temperature to match the new set point.

Why the other options are incorrect:

A) The hypothalamus is synthesizing and releasing TRH to inhibit heat dissipating behaviors:

Thyrotropin-releasing hormone (TRH) stimulates TSH release for thyroid hormone regulation, not directly involved in fever development or heat conservation behaviors.

C) The anterior pituitary is releasing ACTH to stimulate heat generating behaviors:

ACTH is involved in the stress response and cortisol production, not directly in fever induction or thermoregulation.

D) Leukotrienes are stimulating epinephrine and thyroxine to increase basal metabolic rate:

Leukotrienes are inflammatory mediators, but they are not key players in pyrexia development, and this statement inaccurately links them to hormonal effects not central to the fever mechanism.

Correct Answer: D) Uremia

Explanation:

Uremia is a hallmark manifestation of chronic kidney disease (CKD), especially in the advanced stages. As the kidneys lose their ability to adequately filter waste products from the blood, nitrogenous wastes such as urea and creatinine accumulate, leading to uremia. Symptoms may include fatigue, confusion, nausea, pruritus, and a uremic odor on the breath.

Why the other options are incorrect:

A) Hypokalemia:

CKD more commonly causes hyperkalemia, not hypokalemia, because the kidneys are unable to excrete potassium efficiently.

B) Hypovolemia:

Clients with CKD often experience fluid retention, not depletion, due to impaired renal excretion, leading to hypervolemia and potential hypertension or edema.

C) Polycythemia:

CKD typically results in anemia, not polycythemia, due to reduced erythropoietin production by the failing kidneys.

Correct Answer: C) Psychopharmacological medications have similar dosing across all age groups.

Explanation:

C) Psychopharmacological medications have similar dosing across all age groups is not accurate and should not be included in client education. Age significantly affects drug metabolism and clearance, especially in older adults and children. Older adults often require lower doses due to reduced liver and kidney function, altered body composition, and increased sensitivity to drug effects. Children also require carefully adjusted dosages based on age and weight.

Why the other options are correct:

A) Renal disease may impact drug choice and dose in some clients:

Correct. Renal impairment affects drug elimination, requiring dose adjustments to prevent accumulation and toxicity.

B) These medications have the risk for cytochrome P450 interactions that impact the action of the medication:

Correct. Many psych meds are metabolized by liver enzymes, especially the CYP450 system, and may have drug-drug interactions that alter effectiveness or increase side effects.

D) Hepatic disease can impact dose:

Correct. The liver metabolizes most psychotropic drugs. If liver function is impaired, drug levels can accumulate, necessitating dose reductions or alternative medications.

Correct Answer: D) "It is important to maintain adequate nutrition, including a high-protein diet to support wound healing."

Explanation:

D) Adequate nutrition and a high-protein diet are essential after surgery to promote tissue repair, collagen synthesis, and immune function, all of which are vital for wound healing, especially in obese clients, who are at increased risk for wound dehiscence, infection, and delayed healing. Protein helps rebuild tissue and supports the healing process at the cellular level.

Why the other options are incorrect:

A) "You should avoid taking pain medication to prevent constipation.":

While constipation is a valid concern, pain management is essential for mobility and deep breathing. Constipation can be managed with stool softeners and hydration, not by withholding pain relief.

B) "You should rest and avoid moving around too much to prevent strain on your incision.":

Prolonged immobility increases the risk of venous thromboembolism and respiratory complications. Clients should be encouraged to mobilize early, while avoiding strenuous activity.

C) "You may return to your normal activity level once you feel comfortable at home.":

This is too vague and may lead to premature overexertion. Activity should be gradually resumed based on medical advice and the nature of the surgery.

Correct Answer: C) "The usual dose of medication may be too large for your liver."

Explanation:

The liver is a major organ responsible for metabolizing many medications. In liver disease, hepatic function is reduced, which can lead to slower metabolism and clearance of drugs, increasing the risk of toxicity. As a result, doses often need to be reduced to prevent medication buildup in the body. The nurse's response should help the client understand that the adjustment is for safety due to impaired liver function.

Why other options are wrong:

A) "You should really ask your health care provider.":

This avoids the question and misses a teaching opportunity. Nurses are responsible for reinforcing and explaining provider decisions in understandable terms.

B) "The HCP is afraid you will become dependent on the medications.":

This is speculative and unrelated to the reason for dose adjustment in liver disease, which is about impaired metabolism, not dependency.

D) "The affinity of the medication changes with liver disease.":

"Affinity" refers to a drug’s binding strength to a receptor, which is not the primary concern in liver disease. The issue is reduced metabolic capacity, not altered drug-receptor interaction.

Correct Answer: C) Lithium is classified as a mood stabilizer

Explanation:

Lithium is a well-established mood stabilizer used primarily in the treatment of bipolar disorder, especially for managing manic and depressive episodes. It helps regulate mood swings and is one of the most effective long-term treatments for this condition.

Why other options are wrong:

A) Regular blood levels are not needed when lithium is used:

This is false. Lithium has a narrow therapeutic index, and regular monitoring of serum lithium levels is essential to avoid toxicity, which can cause tremors, confusion, seizures, and even death.

B) Lithium is used only for anxiety:

Lithium is not typically used to treat anxiety as a primary indication. While it may indirectly reduce anxiety by stabilizing mood in bipolar disorder, its main use is not anxiety treatment.

D) Lithium has no interactions with other drugs so it is safe to use with all prescriptions:

Lithium interacts with several medications, including NSAIDs, diuretics, and ACE inhibitors, all of which can increase lithium levels and risk of toxicity. Clients must report all medications to their provider.

Correct Answer: D) "Taking steroids and NSAIDs can increase the risk for stomach ulcers so we need to discuss an alternate plan for pain management."

Explanation:

Prednisone (a corticosteroid) and ibuprofen (a nonsteroidal anti-inflammatory drug or NSAID) both increase the risk of gastrointestinal (GI) irritation, ulcers, and bleeding. Using these together significantly raises the risk of peptic ulcer disease due to their combined effects on gastric mucosa and prostaglandin inhibition. For patients who require both, gastroprotection (e.g., proton pump inhibitors) or alternative pain control strategies should be considered. The nurse should advocate for safer pain management options and collaborate with the provider to prevent complications.

Why the Other Options Are Wrong:

A) "Prednisone can exacerbate pain by increasing prostaglandin synthesis..."

This is inaccurate. Prednisone actually inhibits prostaglandin synthesis by blocking phospholipase A2, contributing to its anti-inflammatory and pain-relieving effects. It does not exacerbate pain through prostaglandin production.

B) "I will talk to the provider about having your prednisone switched to alternate day dosing..."

Alternate-day dosing may reduce long-term side effects but is not typically used for acute pain management. Also, pain control often requires daily anti-inflammatory coverage, especially in autoimmune diseases with chronic inflammation.

C) "Ibuprofen is not a very strong analgesic..."

Ibuprofen is actually an effective NSAID for pain and inflammation, especially at higher doses. The concern here is not its potency but the risk of GI complications when combined with corticosteroids.