Which of the following actions should a nurse perform when suctioning clients with tracheostomy tubes, according to best practices? Select All that Apply.

A spinal cord injury at the C4 level can significantly impair respiratory function because it affects the phrenic nerve, which originates from C3–C5 and controls the diaphragm. Damage at or above this level can reduce or eliminate effective diaphragmatic breathing, making ventilatory support potentially necessary. Clients may initially have some spontaneous breathing but are at high risk for rapid respiratory compromise due to weak cough effort and reduced airway clearance. Continuous respiratory assessment is essential to detect early signs of failure.

Rationale:
A. Decreased sensation in the upper extremities is an expected finding in cervical spinal cord injuries but does not directly indicate respiratory compromise. Sensory deficits reflect neurological involvement but do not determine ventilatory function. The priority concern in C4 injuries is respiratory muscle impairment rather than sensory changes.

B. Signs of respiratory distress and inability to control coughing indicate compromised airway protection and reduced ventilatory capacity. Weak or absent cough reflex increases the risk of secretion retention and airway obstruction. In a C4 injury, impaired diaphragmatic and accessory muscle function can rapidly lead to respiratory failure, making ventilatory support necessary.

C. Normal full range of motion in the extremities would be unexpected in a C4 spinal cord injury, which typically results in significant motor deficits. However, this finding does not provide information about respiratory status. The primary concern in this context remains breathing adequacy rather than limb movement.

D. Normal swallowing and absence of dysphagia are positive findings but do not rule out respiratory compromise in a C4 injury. While swallowing function may remain intact depending on the extent of injury, respiratory muscle impairment can still progress. Ventilatory support decisions are based on breathing effectiveness rather than swallowing ability alone.

Bone marrow suppression is a common adverse effect of cytotoxic and antimetabolite therapies such as Methotrexate. This condition results in decreased production of blood cells, leading to anemia, leukopenia, and thrombocytopenia. Because the bone marrow is responsible for hematopoiesis, monitoring blood cell counts is essential to evaluate recovery and detect toxicity early. Improvement is primarily reflected in normalization of circulating blood cell lines.

Rationale:
A. A complete blood count (CBC) is the most appropriate laboratory test to monitor improvement in bone marrow suppression. It directly measures white blood cells, red blood cells, hemoglobin, hematocrit, and platelets, all of which are affected by methotrexate toxicity. Rising counts toward normal ranges indicate recovery of bone marrow function and improved hematopoiesis.

B. Renal function tests are important in clients receiving methotrexate because the drug is primarily excreted by the kidneys and can accumulate in renal impairment. However, these values assess drug clearance and toxicity risk rather than recovery from bone marrow suppression. They do not directly reflect improvement in blood cell production.

C. Liver function tests (LFTs) are monitored because methotrexate can cause hepatotoxicity with prolonged use. While they help detect liver injury, they are not indicators of bone marrow recovery. Improvement in bone marrow function is not reflected in hepatic enzyme levels.

D. Blood chemistry panels assess electrolytes and metabolic status, which may be indirectly affected in critically ill patients. However, they do not provide specific information about bone marrow activity or hematologic recovery. Therefore, they are not useful for evaluating improvement in bone marrow suppression.