Nur 255 B Adult Health 1 CBU

Correct Answer: Ventilator acquired pneumonia (VAP)

Patients who are intubated and receiving mechanical ventilation are at a high risk for developing Ventilator Associated Pneumonia (VAP).

VAP occurs when bacteria or other pathogens are introduced into the lungs via the endotracheal tube, leading to infection.

The intubation process bypasses the body's natural defenses in the upper respiratory tract, which increases the risk of pneumonia.

Why the Other Options Are Incorrect:

Urinary tract infection (UTI):

While UTIs are common in hospitalized patients, they are more typically associated with the use of indwelling urinary catheters, not mechanical ventilation.

Surgical wound infection:

Although surgical wounds can be a source of infection, the primary risk for infection in patients who are intubated is typically VAP rather than wound infections unless the patient has had recent surgery involving the respiratory system.

Intravenous site infection:

IV site infections can occur, but they are not as directly associated with the intubation or mechanical ventilation process. Infections related to the intravenous line are more closely linked to the administration of medications or fluids rather than the use of a ventilator.

Summary:

Ventilator-associated pneumonia (VAP) is the most significant infection risk for patients who are intubated in the intensive care unit. This risk arises due to the direct pathway created by the endotracheal tube for pathogens to enter the lungs.

Correct Answer: Leukocytosis

Leukocytosis refers to an elevated white blood cell (WBC) count. A normal WBC count typically ranges from 4,000 to 11,000/mm³, so a WBC count of 20,000/mm³ indicates that the client has an increased number of white blood cells, which is characteristic of leukocytosis.

Why the Other Options Are Wrong:

Neutropenia

Neutropenia refers to a low neutrophil count, which is a type of white blood cell. Neutropenia would typically present with a WBC count below the normal range. Since the patient’s WBC count is elevated, neutropenia is not appropriate in this case.

Left shift

A left shift refers to an increase in the number of immature neutrophils (bands) in the blood, often seen in response to infection or inflammation. While a left shift can occur with leukocytosis, it is not specifically indicated just by a total WBC count of 20,000/mm³. A left shift is based on the distribution of different types of white blood cells, particularly immature ones.

 Leukopenia

Leukopenia is the term for a low white blood cell count, typically below 4,000/mm³. Given that the patient’s WBC count is elevated at 20,000/mm³, leukopenia does not apply.

Summary:

A WBC count of 20,000/mm³ indicates leukocytosis, which is an elevated white blood cell count. This can occur in response to conditions like infection, inflammation, or leukemia. It is important to differentiate this from other conditions like neutropenia (low WBC count), leukopenia (low WBC count), and left shift (increased immature neutrophils).

Correct Answers: Obtain a signed consent, Perform a baseline assessment, and Check for allergies.

Obtain a signed consent: A blood transfusion requires informed consent. The nurse must ensure that the client has signed the consent form, acknowledging that they understand the risks, benefits, and alternatives to the procedure.

Perform a baseline assessment: Before starting the transfusion, it is crucial to obtain baseline vital signs (temperature, pulse, blood pressure, respiratory rate, oxygen saturation) and assess the client for any signs or symptoms of fluid overload or pre-existing reactions. 

Check for allergies: The nurse must check the client's medical history for any known allergies or previous reactions to blood products. This is critical for identifying patients at higher risk of transfusion-related complications.

Explanation of Incorrect Answers:

Initiate a 22-gauge IV: A larger bore IV (18- or 20-gauge) is recommended for blood transfusion to ensure adequate flow and prevent hemolysis of red blood cells. A 22-gauge IV is too small for transfusing packed red blood cells efficiently.

Hang an IV of D5W: Blood products must be infused using normal saline (0.9% sodium chloride) as it is isotonic and does not cause hemolysis or clotting of red blood cells. D5W is contraindicated for blood transfusions.

Summary:

For a safe blood transfusion, the nurse should obtain consent, perform a baseline assessment, and check for allergies. The IV gauge must be large enough (18-20 gauge), and normal saline should be used as the compatible solution for blood product administration.

Correct Answer: Metabolic alkalosis.

Prolonged vomiting results in the loss of stomach contents, which are rich in hydrochloric acid (HCl). The loss of this acid leads to an increase in the body's bicarbonate levels, resulting in metabolic alkalosis.

This imbalance is characterized by a rise in blood pH and bicarbonate (HCO₃⁻) levels.

Why the other options are wrong:

Respiratory acidosis:

Respiratory acidosis occurs when the lungs are unable to remove enough carbon dioxide (CO₂), leading to its accumulation and a decrease in pH. Vomiting does not affect CO₂ levels and is unrelated to respiratory acidosis.

Respiratory alkalosis:

This occurs when there is excessive loss of CO₂ due to hyperventilation, which increases blood pH. Vomiting does not directly affect breathing or CO₂ levels, so this option is incorrect.

Metabolic acidosis:

This occurs when there is an accumulation of acid in the body or a loss of bicarbonate, often due to diarrhea, kidney dysfunction, or conditions like diabetic ketoacidosis. Vomiting leads to the loss of acid, not bicarbonate, so this option is incorrect.

Summary:

Prolonged vomiting leads to the loss of hydrochloric acid from the stomach, causing an increase in bicarbonate levels and resulting in metabolic alkalosis. It is important to monitor for symptoms such as confusion, muscle twitching, and changes in electrolyte levels (especially potassium), as these can accompany the alkalotic state. 

Correct Answer: A systolic blood pressure lower than 90 mmHg

In the immediate postoperative period, the nurse should be particularly vigilant for signs of shock or complications, which may include low blood pressure. A systolic blood pressure lower than 90 mmHg can indicate hypovolemia, hemorrhage, or other complications requiring immediate intervention.

Why the Other Options Are Incorrect:

A temperature reading between 97° F and 98°F:

This is typically within the normal range and does not require immediate intervention. Postoperative temperatures can vary slightly, and a reading within this range is generally considered stable unless it deviates significantly from baseline or increases progressively.

Respirations between 20-25 breaths/min:

This is within the normal adult respiratory rate range (12-20 breaths/min), and the slight increase could be a normal postoperative response. However, it does not warrant immediate attention unless it becomes abnormal (e.g., >30 breaths/min or <10 breaths/min).

A hemoglobin of 13.6:

This hemoglobin level is within the normal range for most adults (typically 12-16 g/dL for women and 14-18 g/dL for men), and it does not require immediate reporting unless there are clinical signs of anemia or bleeding.

Summary:

The most critical measurement to report immediately in the postoperative period is a systolic blood pressure lower than 90 mmHg, as it can be indicative of potentially serious complications such as hemorrhage or shock

Correct Answer: IM injection or intranasally

Vitamin B12 is essential for red blood cell production, and intrinsic factor is necessary for its absorption in the stomach. In cases where a patient lacks intrinsic factor, such as in pernicious anemia, they are unable to absorb Vitamin B12 through the normal digestive process.

To bypass the gastric system, Vitamin B12 can be administered through intramuscular (IM) injections or intranasal preparations. These methods allow the Vitamin B12 to enter the bloodstream directly, bypassing the need for absorption in the stomach and small intestine.

Why the Other Options Are Wrong:

Nasogastric tube – A nasogastric tube would not be effective in this case because the issue is not with the physical ability to ingest food but with the lack of intrinsic factor required for absorption in the stomach.

PO or PR – Oral (PO) or rectal (PR) administration of Vitamin B12 would not work for this patient, as the lack of intrinsic factor prevents the absorption of Vitamin B12 in the gastrointestinal tract.

Consuming foods high in iron – While iron is important for red blood cell production, it does not solve the issue of Vitamin B12 deficiency caused by a lack of intrinsic factor. Iron supplementation will not correct pernicious anemia, which requires Vitamin B12.

Summary:

For patients with pernicious anemia caused by a lack of intrinsic factor, Vitamin B12 must be administered via intramuscular (IM) injection or intranasally to bypass the digestive system and ensure proper absorption.

Correct Answer: To decrease risk of transmission to vulnerable patients.

Health care providers are encouraged to receive the annual influenza vaccination primarily to decrease the risk of transmitting the influenza virus to vulnerable patients.

Health care settings often involve patients who are at higher risk for complications from the flu, such as the elderly, young children, pregnant women, and individuals with chronic illnesses or compromised immune systems.

By getting vaccinated, health care workers help protect these high-risk populations from severe outcomes or complications related to influenza.

Why the other options are wrong:

To decrease nurses' sick days: While the vaccine may reduce the likelihood of nurses getting sick and missing work, this is not the primary rationale for vaccination. The main purpose is to protect patients and public health, not just to reduce absenteeism.

To eventually eradicate the influenza virus in the United States: Influenza is a highly variable virus, and despite widespread vaccination efforts, eradicating the influenza virus is not currently possible. The flu virus mutates frequently, which is why new vaccines are needed each year. Eradication is not a realistic goal for the influenza vaccine.

To prevent the emergence of drug-resistant strains of the influenza virus: The emergence of drug-resistant strains is more closely related to the overuse or misuse of antiviral medications, not the influenza vaccine. The vaccine works by preventing infection, while antiviral medications are used to treat or shorten the duration of flu symptoms. The vaccine does not directly prevent drug resistance.

Summary:

The primary reason health care providers receive the influenza vaccination annually is to reduce the risk of transmitting the influenza virus to vulnerable patients, ensuring their safety and reducing the potential for serious complications.

Correct Answer: Contact the surgeon.

Once a patient has received a preoperative sedative, their ability to give informed consent is considered compromised because sedatives can impair judgment, cognition, and decision-making.

In this situation, the surgeon must be contacted to determine the appropriate course of action, as the surgeon is responsible for ensuring that informed consent is obtained prior to surgery.

Why the Other Options Are Incorrect:

Ask the patient to sign the consent form:

The patient cannot legally or ethically sign the consent form after receiving sedatives because they are no longer considered capable of providing informed consent.

Send the patient for surgery with an unsigned consent form:

Performing surgery without informed consent is unethical and a legal violation, except in emergency situations where the patient is unable to consent, and there is no time to obtain it.

Phone the operating room suite to notify the nurse that the patient has not signed the consent form:

While the operating room staff should be informed, contacting the surgeon is the immediate priority. The surgeon must address the issue, potentially postponing the procedure or obtaining consent from a legal representative if necessary.

Summary:

Informed consent must always be obtained before a sedative is administered. If the consent is missing, the surgeon must be contacted immediately to resolve the issue.

Correct Answer: Assess the patency of the airway

The first priority for a postoperative client is to ensure a patent airway. Airway patency is critical because airway obstruction can lead to hypoxia and life-threatening complications.

This is consistent with the ABCs of prioritization (Airway, Breathing, Circulation), which emphasize airway assessment as the primary concern.

Why the Other Options Are Wrong:

Check tubes or drains for patency 

While checking tubes or drains is important to ensure proper functioning and drainage, it is not the first priority. Ensuring the airway is clear takes precedence over this.

Check the dressing to assess for bleeding 

Assessing the dressing for bleeding is an important step, but it is not more critical than confirming a patent airway. Uncontrolled bleeding would be addressed after airway and breathing are assessed.

Assess the vital signs to compare with preoperative measurements 

Although assessing vital signs is important for detecting potential complications, it is a secondary priority after ensuring the airway is open and the patient is breathing adequately.

Summary: On the arrival of a postoperative client, the nurse’s first action should always focus on assessing airway patency to prevent life-threatening complications, following the ABCs of prioritization. Other assessments, such as vital signs, dressings, and tubes, should follow in order of importance.