In caring for an infant after circumcision, the nurse observes continued bleeding from the site and suspects hemophilia. Which hematological components are insufficient causing bleeding if hemophilia is present?

Deficiency of factors VIII or IX.

Diminished amount of vitamin K.

Decreased amount of platelets.

Missing factors V and VII.

Answer and Explanation

The Correct Answer is A

A) Deficiency of factors VIII or IX.

Hemophilia is a genetic disorder characterized by deficient or defective clotting factors, specifically factors VIII (hemophilia A) or IX (hemophilia B). These clotting factors are essential for the formation of stable blood clots. Therefore, if hemophilia is present, the deficiency of factors VIII or IX can lead to impaired clot formation and prolonged bleeding.

B) Diminished amount of vitamin K:

Vitamin K deficiency can lead to impaired blood clotting due to inadequate synthesis of clotting factors in the liver. However, hemophilia is specifically associated with deficiencies in factors VIII or IX, not vitamin K.

C) Decreased amount of platelets:

Platelets play a crucial role in primary hemostasis and initial platelet plug formation at the site of vascular injury. While decreased platelet count or dysfunction can lead to bleeding disorders such as thrombocytopenia or platelet function disorders, hemophilia specifically involves deficiencies in clotting factors, not platelets.

D) Missing factors V and VII:

Factor V and VII are other clotting factors involved in the coagulation cascade, but they are not deficient in hemophilia. Hemophilia is specifically characterized by deficiencies in factors VIII (hemophilia A) or IX (hemophilia B).

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Correct Answer is C

Explanation

Hypothyroidism is characterized by deficient production of thyroid hormones by the thyroid gland, leading to a decrease in circulating levels of triiodothyronine (T3) and thyroxine (T4). As a compensatory mechanism, the pituitary gland releases increased amounts of thyroid stimulating hormone (TSH) in an attempt to stimulate thyroid hormone production.

A) Increased triiodothyronine (T3) and thyroxine (T4) and decreased thyroid stimulating hormone (TSH):

This pattern of laboratory findings is not consistent with hypothyroidism. Hypothyroidism is characterized by decreased levels of T3 and T4 due to impaired thyroid function, leading to increased TSH levels as a compensatory response. Therefore, this option is incorrect.

B) Increased triiodothyronine (T3) and thyroid stimulating hormone (TSH):

While TSH levels are typically increased in hypothyroidism, T3 levels are usually decreased. Therefore, the combination of increased T3 and TSH is not indicative of hypothyroidism. This option is incorrect.

C) Decreased triiodothyronine (T3) and thyroxine (T4) and increased thyroid stimulating hormone (TSH):

Correct. In hypothyroidism, there is a decrease in both T3 and T4 levels due to impaired thyroid function. As a compensatory mechanism, the pituitary gland releases increased amounts of TSH to stimulate the thyroid gland. Therefore, this pattern of laboratory findings is consistent with hypothyroidism.

D) Decreased thyroid stimulating hormone (TSH), triiodothyronine (T3), and thyroxine (T4):

Decreased levels of TSH, T3, and T4 are not indicative of hypothyroidism. Hypothyroidism is characterized by elevated TSH levels and decreased T3 and T4 levels. Therefore, this option is incorrect.

A. It occurs as a complication of a spinal cord injury. B. Muscle weakness is progressive, degenerative, and fatal. C. Mental status changes occur late in the disease. D. Autonomic nervous system and sensory changes occur.

Correct Answer is B

Explanation

Amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, is a progressive neurodegenerative disorder affecting motor neurons in the brain and spinal cord. Understanding the pathophysiological process of ALS is crucial for providing accurate information about the disease prognosis to the client. Here's why option B is the correct choice:

A) It occurs as a complication of a spinal cord injury:

This statement is incorrect. ALS is not a complication of a spinal cord injury. While both conditions involve motor neuron dysfunction, they have different etiologies and pathophysiological processes. ALS is characterized by the degeneration of motor neurons in the brain and spinal cord, leading to muscle weakness and atrophy, whereas spinal cord injury results from trauma to the spinal cord.

B) Muscle weakness is progressive, degenerative, and fatal:

Correct. ALS is characterized by progressive degeneration of motor neurons, leading to muscle weakness, atrophy, and eventual paralysis. The disease is relentless and fatal, typically within 2 to 5 years of diagnosis, although survival can vary widely among individuals. As motor neurons degenerate, voluntary muscle control is lost, eventually affecting the ability to speak, swallow, breathe, and move. Respiratory failure is the most common cause of death in ALS patients.

C) Mental status changes occur late in the disease:

While cognitive and behavioral changes can occur in some individuals with ALS, particularly in the later stages of the disease, they are not universal. ALS primarily affects motor neurons, leading to progressive muscle weakness and paralysis. However, some individuals may experience frontotemporal dementia (FTD), a type of cognitive impairment characterized by changes in behavior, personality, and language.

D) Autonomic nervous system and sensory changes occur:

ALS primarily affects motor neurons rather than sensory neurons or the autonomic nervous system. Sensory symptoms such as numbness, tingling, or loss of sensation are not typical features of ALS. Autonomic dysfunction, including changes in heart rate, blood pressure, or bowel and bladder function, is not a prominent feature of ALS.

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In caring for an infant after circumcision, the nurse observes continued bleeding from the site and suspects hemophilia. Which hematological components are insufficient causing bleeding if hemophilia is present?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

An adult client with extreme fatigue, weight gain, cold intolerance, and bradycardia is diagnosed with hypothyroidism. Which laboratory findings is this client likely to exhibit?

Correct Answer is C

Explanation

A client is diagnosed with amyotrophic lateral sclerosis (ALS). Which pathophysiological process should the nurse use when providing the client with information about this disease prognosis?

Correct Answer is B

Explanation

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