Based on the type of stroke and clinical observations, which three of the following swallow impairments would the SLP likely observe on the VFSS?
1) incomplete clearance of material from the oral cavity
2) impaired or absent opening of the UES
3) anterior loss of bolus contents during the oral prep stage
4) nasopharyngeal regurgitation during the pharyngeal stage
5) adequate excursion of the hyolaryngeal complex
6) unilateral pharyngeal paralysis