Medical surgical Exam 1 (NSG 123)

Correct Answer: C. Transverse fracture

Rationale:

A transverse fracture occurs when the fracture line runs straight across the bone or at a right angle to the bone’s long axis. In this case, the fracture line extends around the ankle, indicating a horizontal break across the tibia, which classifies it as a transverse fracture.

Explanation of Incorrect Options:

A. Comminuted fracture

A comminuted fracture involves the bone breaking into multiple pieces or fragments. Since the X-ray shows that the bone is still aligned and not shattered, this is not the correct answer.

B. Colles' fracture

A Colles' fracture is a fracture of the distal radius (wrist) and is usually caused by a fall on an outstretched hand. Since the fracture is in the tibia near the ankle, this does not match the description.

D. Greenstick fracture

A greenstick fracture is an incomplete fracture that commonly occurs in children, where one side of the bone breaks, and the other bends. Since this fracture extends fully around the ankle, it does not fit the greenstick fracture pattern.

Summary:

A transverse fracture is characterized by a horizontal break across the bone’s shaft, which fits the X-ray findings of a fracture line extending around the ankle with bone alignment intact.

Correct Answers:

B. Infection

C. Rejection

D. Vasculopathy

Rationale:

B. Infection:

Infection is a significant concern during the first year after heart transplantation. The patient’s immune system is suppressed due to the use of immunosuppressive drugs to prevent organ rejection. This makes them more vulnerable to bacterial, viral, and fungal infections. Early post-transplant patients are especially at risk for opportunistic infections that would not typically affect immunocompetent individuals.

C. Rejection:

Rejection occurs when the recipient’s immune system identifies the new heart as foreign and attacks it. The risk of acute rejection is highest in the first year after transplantation. Patients are monitored closely through biopsies and other tests to detect signs of rejection early. Rejection is a critical risk in the early period as it can lead to organ failure if not managed effectively.

D. Vasculopathy:

Cardiac allograft vasculopathy (CAV) or vasculopathy is a chronic condition that leads to coronary artery disease in the transplanted heart. It develops slowly and typically appears after the first year of transplantation. However, it is still a concern in early post-transplant care, and patients are monitored for early signs of it, even though it is not as common in the first year.

Explanation of Incorrect Options:

A. Cancer:

Cancer risk increases due to the long-term use of immunosuppressive medications, which is necessary to prevent rejection. However, cancer risk tends to increase more significantly after the first year of transplantation. In the first year, the body is still adjusting to the transplant, and the risk for infection and rejection takes priority.

E. Sudden cardiac death:

Sudden cardiac death (SCD) can occur due to factors like rejection or infections, but it is less likely to happen within the first year following a heart transplant. SCD is often associated with long-term complications, such as cardiac arrhythmias or chronic vasculopathy, which usually develop after the initial year.

Summary:

In the first year after a heart transplant, the most pressing risks are infection, rejection, and vasculopathy. Cancer and sudden cardiac death are more relevant later in the transplant recipient's life, typically after long-term immunosuppressive therapy and the development of chronic complications like vasculopathy. Therefore, the nurse must prioritize monitoring for infection and rejection early on and educate the patient on these risks. Vasculopathy also needs to be considered, even though it typically develops after the first year.

Correct Answer: B. Walking 30 minutes three times weekly

Rationale:

Weight-bearing exercises help stimulate bone remodeling and strength, which is essential in preventing osteoporosis. Walking is a low-impact, weight-bearing exercise that is safe, effective, and sustainable for individuals at risk for osteoporosis. Walking three times a week helps maintain bone density and reduces the risk of fractures.

Why the Other Options Are Incorrect:

A. High-impact aerobics 45 minutes once weekly

High-impact exercises may increase the risk of falls and fractures, especially in individuals with weakened bones. Additionally, exercising only once a week is not enough to provide consistent bone-strengthening benefits.

C. Jogging 30 minutes four times weekly

While jogging is a weight-bearing exercise, it is high-impact, which may put stress on fragile bones and increase the risk of fractures in individuals prone to osteoporosis. Walking is a safer alternative.

D. Bowling for 1 hour twice weekly

Bowling is not a weight-bearing exercise that significantly benefits bone health. While it may improve coordination and muscle strength, it does not provide enough bone-loading stimulus to help prevent osteoporosis.

Summary:

The best choice is walking for 30 minutes three times a week, as it is a low-impact, weight-bearing exercise that helps maintain bone density while minimizing the risk of fractures.

Correct Answer: D) Check the femoral puncture site at frequent intervals.

Rationale:

Since Mr. Palmer has undergone an angioplasty and is on continuous IV heparin, he is at a high risk for bleeding. Frequent monitoring of the femoral puncture site is crucial to detect early signs of bleeding, hematoma formation, or complications from the procedure. Heparin is an anticoagulant that increases bleeding risk, making careful observation essential.

Why the Other Options Are Incorrect:

A) Monitor his prothrombin time.

Prothrombin time (PT) is used to monitor warfarin (Coumadin) therapy, not heparin. The correct test to monitor heparin therapy is the activated partial thromboplastin time (aPTT) or anti-Xa assay.

B) Observe him for signs of pulmonary embolism.

While patients on anticoagulants may be treated for conditions like deep vein thrombosis (DVT) or pulmonary embolism (PE), Mr. Palmer has not been diagnosed with a PE. The priority here is preventing bleeding rather than monitoring for a PE.

C) Limit his intake of foods high in vitamin K.

Vitamin K affects warfarin (Coumadin) therapy, not heparin. Since he is on IV heparin, dietary vitamin K intake is not relevant at this time.

Summary:

The correct answer is D) Check the femoral puncture site at frequent intervals because Mr. Palmer is on IV heparin and has undergone an angioplasty, making him at high risk for bleeding or hematoma formation at the puncture site. The other options focus on warfarin monitoring, PE risk, or dietary factors that are not directly relevant to IV heparin therapy.

The correct answer is D. Constrictive pericarditis.

Rationale:

Right-sided heart failure (RHF) occurs when the right side of the heart is unable to pump blood efficiently to the lungs. Several conditions can cause or contribute to RHF by increasing the pressure or volume load on the right side of the heart, leading to its failure. 

D. Constrictive pericarditis: This condition involves thickening and scarring of the pericardial sac, which restricts the heart's ability to expand and fill properly. This impaired filling increases venous pressure, particularly in the right atrium and ventricle, and can lead to right-sided heart failure. This condition is a well-known cause of RHF due to the external restriction on the heart.

Why the other options are incorrect:

A. A ventricular septal defect (VSD): This condition creates a hole between the right and left ventricles, but it typically results in left-to-right shunting of blood. While VSD may increase pulmonary blood flow and eventually lead to pulmonary hypertension, it does not directly cause right-sided heart failure. Over time, it may contribute to left heart failure and complications, but not RHF as the primary result.

B. An anterior MI: An anterior myocardial infarction (MI) affects the left ventricle. While left-sided heart failure may follow an anterior MI, it does not directly cause right-sided heart failure. However, severe left-sided failure can eventually lead to right-sided heart failure if the left heart dysfunction is severe enough to back up into the right side of the heart.

C. An atrial septal defect (ASD): An ASD allows blood to flow between the right and left atria. In most cases, it leads to a left-to-right shunt, which increases the volume of blood in the right atrium and ventricle. While this can contribute to right-sided heart failure over time due to volume overload, it is less likely to cause isolated RHF in the acute setting.

Summary:

​​​​​​​Constrictive pericarditis (D) is the condition that most directly causes right-sided heart failure by restricting the heart's ability to expand and fill properly. Therefore, the correct answer is D. Constrictive pericarditis.

Correct Answer: B) Maceration

Rationale:

Maceration refers to the softening and breakdown of tissue due to prolonged exposure to moisture. It often occurs when the skin remains wet for extended periods, leading to a white, wrinkled, and fragile appearance. In wound care, maceration can delay healing and increase the risk of infection.

Why the Other Options Are Incorrect:

A) Eschar

Eschar is dead, necrotic tissue that appears black, dry, and leathery. It forms as a result of severe tissue damage, such as deep burns, pressure ulcers, or gangrene. Unlike maceration, eschar is not caused by moisture but by tissue death.

C) Sloughing 

Slough refers to yellow, stringy, or mucous-like dead tissue that appears in wounds. It results from the body’s natural process of removing dead cells. While sloughing can occur in chronic wounds, it is not caused by excess moisture like maceration.

D) Angiogenesis 

Angiogenesis is the formation of new blood vessels, essential for wound healing and tissue regeneration. It plays a critical role in bringing oxygen and nutrients to a healing wound. Unlike maceration, angiogenesis is a beneficial process rather than a harmful effect of moisture.

Summary:

Maceration (B) is the correct answer because it describes the softening of tissue due to prolonged exposure to moisture. Eschar (A) is dead, dry tissue, slough (C) is soft, yellow tissue, and angiogenesis (D) refers to new blood vessel formation, making them incorrect choices.Thus, the correct term for softening of tissue by wetting or soaking is maceration.

Correct Answer: "You should take the medication exactly as prescribed and avoid taking antacids at the same time."

Explanation:

H2 blockers (such as ranitidine, famotidine, or cimetidine) work by reducing stomach acid production, allowing ulcers to heal. The nurse should instruct the client to take the medication exactly as prescribed for full effectiveness. Additionally, antacids can interfere with the absorption of H2 blockers, so they should be taken at least one to two hours apart from the H2 blocker.

Why the Other Options Are Incorrect:

"This medication may need to be taken for one year before relief of symptoms occurs." 

Most peptic ulcers heal within 4 to 8 weeks with H2 blocker therapy. A year-long treatment is unnecessary unless the ulcer is recurrent or caused by an underlying chronic condition.

"Misoprostol is the most commonly prescribed medication in this class." 

Misoprostol is not an H2 blocker; it is a prostaglandin analog used to prevent gastric ulcers in clients taking long-term NSAIDs. The most commonly prescribed H2 blockers are famotidine, ranitidine (historically), and cimetidine.

"Taking this medication and avoiding any NSAIDs and aspirin for one week will eliminate your symptoms."

While avoiding NSAIDs and aspirin is crucial in preventing ulcer worsening, H2 blockers do not eliminate symptoms within one week. Healing takes time, usually several weeks, depending on the severity of the ulcer.

Summary:

The correct teaching point is that H2 blockers should be taken as prescribed and not taken simultaneously with antacids, as antacids can interfere with their absorption. The other options contain inaccuracies about treatment duration, drug classification, and symptom resolution timelines.

Correct Answer: B. Fluid volume deficit

Explanation 

The nurse should recognize the signs as indicating fluid volume deficit. The following findings support this conclusion:

Low blood pressure (BP of 90/60 mm Hg): This suggests that the client may not be maintaining adequate circulating volume, which is a common sign of fluid volume deficit.

Tachycardia (pulse of 118): The elevated heart rate is a compensatory mechanism for low blood volume or low blood pressure, which often occurs in cases of fluid volume deficit.

Dark yellow urine and low urine output (22 mL in the past hour): These findings are indicative of dehydration or low fluid volume. The kidneys conserve water in response to reduced circulating volume, which leads to concentrated, dark urine and decreased urine output.

High urine specific gravity (1.035): A specific gravity greater than 1.030 typically indicates concentrated urine, which occurs when the kidneys are trying to conserve water due to insufficient fluid intake or volume depletion.

Why the Other Options Are Incorrect:

A. Acute kidney failure

While reduced urine output can be a sign of acute kidney failure, the findings in this scenario are more indicative of a fluid volume deficit rather than kidney failure. In acute kidney failure, urine output is often either absent (anuria) or severely decreased, and additional diagnostic tests (e.g., elevated creatinine or BUN) would be required to confirm this diagnosis.

C. Fluid volume excess

Fluid volume excess would lead to symptoms such as elevated blood pressure, edema, and a low urine specific gravity due to the kidneys' inability to excrete excess fluid. The client's low blood pressure, low urine output, and high specific gravity suggest that they are not experiencing fluid retention but rather a fluid deficit.

D. Diabetes Insipidus

Diabetes insipidus is characterized by a large volume of dilute urine with low specific gravity, which is not consistent with this client's presentation. In diabetes insipidus, the body is unable to concentrate urine due to a deficiency in antidiuretic hormone (ADH) or a resistance to it, leading to excessive urination. This client's dark yellow urine and high specific gravity indicate that the kidneys are conserving water due to low fluid volume, which is inconsistent with diabetes insipidus.

Summary:

The client is showing signs of fluid volume deficit, including low blood pressure, tachycardia, dark yellow urine, low urine output, and high urine specific gravity. These findings suggest the body is compensating for fluid loss by conserving water. Acute kidney failure, fluid volume excess, and diabetes insipidus are less likely based on these specific symptoms.

Correct Answer: D. A pruritic wheal and erythema occurs

Rationale:

A prick epicutaneous test (skin prick test) is used to determine hypersensitivity (allergic reaction) to specific allergens. A positive result is indicated by the formation of a pruritic wheal (raised, itchy bump) and erythema (redness) at the test site. This reaction occurs due to histamine release in response to an allergen, confirming hypersensitivity.

Why the Other Options Are Incorrect:

A. The patient complains of shortness of breath

Shortness of breath is a serious symptom of anaphylaxis, not a typical response to a skin prick test. If this occurs, it requires immediate medical attention.

B. The skin is dry, intact, and without redness

This indicates no reaction to the allergen, meaning the patient is not hypersensitive to the tested substance.

C. The pricked blood tests positive for allergens

The skin prick test does not involve blood testing. Blood tests, such as IgE antibody tests (RAST or ImmunoCAP), are separate diagnostic methods for detecting allergies.

Summary:

A positive skin prick test is confirmed when a pruritic wheal and erythema develop, indicating an allergic reaction to the tested allergen.