A nurse is collecting data from an infant who has coarctation of the aorta. Which of the following manifestations should the nurse expect?
Machine-like murmur
Severe cyanosis
Decreased blood pressure in the legs
Pulmonary edema
The Correct Answer is C
A. Machine-like murmur:
A machine-like murmur typically refers to a continuous murmur, which can be heard throughout systole and diastole. While machine-like murmurs can be associated with certain cardiac conditions, such as patent ductus arteriosus (PDA), they are not typically heard in coarctation of the aorta. In coarctation of the aorta, a systolic ejection murmur may be heard over the upper left sternal border due to turbulent blood flow across the narrowed aortic segment.
B. Severe cyanosis:
Cyanosis refers to a bluish discoloration of the skin and mucous membranes due to decreased oxygenation of the blood. While cyanosis can occur in various congenital heart defects, such as tetralogy of Fallot, it is not a characteristic manifestation of coarctation of the aorta. Coarctation of the aorta typically results in decreased blood flow to the lower extremities rather than mixing of oxygenated and deoxygenated blood.
C. Decreased blood pressure in the legs:
This is the correct choice. Coarctation of the aorta is characterized by narrowing of the aorta, which leads to decreased blood flow to the lower extremities. Consequently, blood pressure measurements in the legs may be lower compared to those in the arms. This finding is often a key indicator of coarctation of the aorta.
D. Pulmonary edema:
Pulmonary edema refers to the accumulation of fluid in the lungs and is typically associated with conditions such as heart failure or fluid overload. While some congenital heart defects may lead to heart failure and subsequent pulmonary edema, coarctation of the aorta does not directly cause pulmonary edema. Instead, it primarily affects blood flow to the lower extremities due to the narrowing of the aorta.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Measure the elixir in a medicine cup before transferring to a syringe:
This option involves measuring the medication using a medicine cup before transferring it to an oral medication syringe. While measuring the medication accurately is important, transferring it from a medicine cup to a syringe introduces an extra step that may increase the risk of spillage or dosage error. It's generally more efficient and accurate to directly draw the medication into the oral syringe.
B. Place the infant supine in a crib prior to administration:
Placing the infant in a supine (lying flat on the back) position in a crib prior to administering oral medication is not recommended, particularly for infants of this age. This position increases the risk of choking or aspiration, as it may cause the medication to flow toward the back of the throat rather than being swallowed properly. It's safer to administer oral medication to infants in an upright or slightly reclined position.
C. Position the syringe to the side of the infant's tongue:
This is the correct choice. Positioning the syringe to the side of the infant's tongue helps facilitate swallowing and reduces the risk of choking or aspiration. Placing the syringe toward the cheek allows the infant to more easily swallow the medication, as it minimizes the chance of the medication flowing toward the back of the throat.
D. Mix the medication with 10 mL of formula:
Mixing medication with formula is not a standard practice for administering oral medication using an oral syringe, particularly without specific instructions from the healthcare provider. Mixing medication with formula may alter the medication's effectiveness and is unnecessary for most oral medications. It's important to administer oral medication directly using an oral syringe to ensure accurate dosing and effectiveness.
Correct Answer is A
Explanation
A. Apical:
The apical pulse is the most reliable location to assess the pulse in infants. It is located at the apex of the heart, which is typically found at the fifth intercostal space at the midclavicular line. Assessing the apical pulse allows for a direct measure of the heart rate and rhythm, which is especially important in infants to evaluate cardiac function accurately. The apical pulse is commonly assessed using a stethoscope placed at the point of maximum impulse (PMI) on the chest.
B. Dorsalis pedis:
The dorsalis pedis pulse is located on the top of the foot, typically in the region between the first and second metatarsal bones. While the dorsalis pedis pulse can be palpated in older children and adults, it may be difficult to palpate accurately in infants, especially those with smaller or more delicate feet. Therefore, it is not the preferred site for pulse assessment in infants.
C. Temporal:
The temporal pulse is located on the side of the head, just above the ear. While the temporal pulse can be palpated in some individuals, it is not typically used to assess the pulse in infants. Palpating the temporal pulse in infants may be more challenging and less reliable compared to other pulse sites, especially given the smaller size of the temporal artery in infants.
D. Carotid:
The carotid pulse is located in the neck, alongside the trachea, and can be palpated by gently pressing the fingers against the carotid artery. While the carotid pulse is easily palpable in adults and older children, it is not typically the preferred site for pulse assessment in infants. Palpating the carotid pulse in infants carries a risk of injury to the delicate structures in the neck and may not provide an accurate representation of the pulse rate.
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